This is one of the performances on the show where you just know people in the other groups were thinking "Well, damn we just lost."

Really glad you acknowledged Kirstin's performance. She really brought everything she had and more to this one. There were times I thought she might burst into flames.

I agree, that was one of the best live performances ever. They set the bar really high with that one, but then they pretty much kept reaching it (especially with performances 7, 10 and 12)!

Wait until you watch "The Dog Days Are Over"

This is so strong...so powerful. It is hard to believe that all this sound is coming from just 5 people! We feel it because THEY felt it. If you look at Kirstin's hand at the end, you can she is shaking.

At this point they have known each other something like 40 days. It's amazing how they found such a cohesive group in so little time. Long Live Ear intrigue!!!

Scott said this was his favorite of the Sing Off performances

It just gets better ..👍🏽👍🏾✌🏾️🌟✌🏿️👏🏻⭐️👏🏽👀

Meanwhile we're down here in the comments waiting patiently for you two to get to "Let's Get it On" and "Dog Days Are Over" ;D (holy god "Love Lockdown" though)

My favorite line from the female judge (sorry I forgot her name) was "you guys are just a really tight ensemble". The reason that it's my favorite line is that it is just so crazy to think that they were that tight when this was only their 5th time performing on stage together.

What I love from this video is that here everyone realise that Pentatonix will win.

My favorite Pentatonix Sing Off performance!!! So GOOD!!!

You are not ready for their Dog days are over performance :) I cannot wait!!!

You're reaction at the end of the performance is OUR reaction. LOLOL

Great reaction to a remarkable performance! Did you notice at the end of the song how much Kirsten's hand was shaking? Very intense.

they cut a studio version of this too.. but its' slower and perfectly harmonized... I like them both but the raw emotion in this live performance is amazing.

Haha I am loving your reactions! This song is so good. Little known fact... they actually released a studio version of this track for free to people that signed up for their newsletter on their website years ago. It’s long gone now but if you want the audio for yourselves, I can hook you up :)

I LOVE this reaction!! (and performance of course!) Marco's face too at 8:22 when Nick mentions seeing if PTX will make it to next week hahaha

You didn’t mention my two favorite moments in this performance-Kevin snarling out “na na na na”s at 4:15, followed by Avi’s descending notes at 4:19. So amazingly cool!

I can’t wait to see you guys hear Scott during Let’s Get It On. Please hurry 😂

"Don't hurt yourself" lol

Just think, Avi and Kevin just joined the group a short while before the Sing Off. ... Guy

This amazing performance was them only being together 5 weeks which is just mind-blowing! That they got this good in such a short space of time, it just shows how good they truly are. The 10th and 12th performances will knock you out of your seats lol.

This one, dog days, lets get it on, and I need your Love are my faves from the sing off. So glad u finally saw it!!

Great reaction guys! It's so hard to believe that this is only the 5th performance they ever did together. They were so intent on winning, they gave it everything. I love Ben's comments - he sometimes sounds critical, but as a singer/song-writer and producer, he really knows his stuff. Can't wait for the next one!

Like many Pentaholics, I know these arrangements almost too well. I find myself forgetting the impact they had the first time around. Thank you for taking me back to the beginning again. It's not just vicarious--your reactions renew my own appreciation of what I'm seeing and hearing. Hard to explain...sorry.

I was waiting for this one... and you guys did not disappoint! This was a killer performance - gave me chills when i first watched it, and I experienced that again watching you react to it! Scott does sometimes use that voice, mostly live... but really I'm looking forward to your reactions to all the other Sing Off performances!!!! *My favourite Scott stans*

So good! I shared on twitter so everyone else can remember what it was like the first time we saw this performance.

I have watched this so many times and I never get tired of it. A M A Z I N G! But... It's not over yet guys and there are some killer performances to come. Also, don't wait too long for their new one, "New Rules..." It really showcases what Matt can do. More so than anything else to date.

Outstanding performance, that was amazing!!!!! Great reaction guys !!

OMG, *loved* your reaction :) Watching the Sing Off performances, I feel like this is the one where the PTX Rocket really left the pad; it's amazing. I think #12 remains my favorite - but this one is right up there. Thanks so much for sharing!

I couldn't wait for you guys to react to this one, and you didn't disappoint! Your expressions were basically all of us the first time we heard this, and I agree this was one of their best performances, even to this day. I mean, the emotional intensity they delivered... when I first saw this back in the day, I don't know I was ever so *viscerally* moved by a musical performance. (Like Shawn said with his "ugly face", it's gut-wrenching, in the best way.) You guys already know ptx and how good they are now, but you still reacted to this with the same "wtf, was that? (soo good!)" that we all had, and it was so fun reliving that with you! btw if you can, please watch all the way to the end of these Singoff video clips (you did on the first two, but lately you've been cutting them off). I know the show's outro is annoyingly long, but there's almost always a few seconds at the very end of a ptx member saying something. (Like on this one you missed Kirstie commenting on their performance and everyone's great reaction.) Some of these end comments can be meaningful or interesting, particularly in the last performances. Just a tip from one pentaholic to another! ;)

Great reaction guys! Always enjoy the show. You may not belive this but they only get better. If you notice even their competitors (you know the people who want them to suck) jump up and give them standing ovations. Keep on keepin on J.

Watching you guys watch these sing off performances is taking me back to when I first watched them and I love it! Y'all are awesome for doing this!

i LOVE this. everytime i watch this one i get chills. amazing reaction you guys

As soon as I heard this during the show, I knew they would win.

I am so ready for you guys to react to 7, 10, and 12...lol..great reaction!!!

I've been SOOOOOOO ready for this one. I can pretty much bet that while this one will be at the top for you guys now, I believe it MIGHT be bumped shortly as (IMHO) there are a few more performances coming up that are ICONIC PTX songs that will likely blow your mind and my bump this one down, or maybe tie. This one is one of my faves and at this point I feel is when nothing was getting between them and the win! Love the reaction, guys!!!

Loved it when I watched it live and it's still great.

this is the performance when i knew they were going to be big wait till you get to lets get it on that was magic

Completely agree!! This one was amazing and put them in a whole other world!

You need to watch their 7th performance, Born To Be Wild.

YASSSS YOUR REACTION WAS ME WHEN I FIRST SAW THIS!! Avi and Kevin blew me away, all of them did actually, but Avi man oh man!! Gosh!! These people.! I frikkin love them soo much 😭❤❤ I think there is one not so good performance coming soon, but don't worry everything else is bloody fantastic.. You haven't even heard the two best ones yet 😁😁 But yeah this one is up there for sure!! Can't wait for more 😁😁 Love y'all!

I love that avi's picture on it. Is usually Scott tho' 💚

Yayyyyyy!!! Another PTX reaction!!!!!

Great reaction! This was so fun watching as it happened

Yes! I loved your reactions! You reacted exactly how I thought you would, LOL. I will probably watch it again & I don't usually do that. This was my 1st intro to PTX back when the show was airing (2011, I believe). I became an instant fan & have been ever since. I hope you get to see them in concert. Can't wait till you get to the 7th, 8th, 10th, 11th, & 12th. Those are awesome as well.

I get the chills every fucking time!! And I have heard this song at least 100 times

Can't wait for your reactions to the rest of them.

One on my favorite ptx sing off performance!!! Can't wait till you see the next performance "Britney Spears Medley"!

I clicked SO fast!! :-) and now...I’m going to watch your reaction again! Good job guys, loved it. Thanks for making me smile :-D

I was waiting for this reaction! Thank you for this!

I am so glad you guys finally got here! Love this so much!

Haven't seen this in a while and kept giving me chills over and over. Just like the first time I saw it! This song is when I fell in love with Pentatonix.

I could wait till you got to this one! Great reaction!

Quite possibly my most favourite reaction of yours. I love watching y'all xx

If we're talking about amazing live performances, I don't know how you feel about reacting to Kelly Clarkson but her performance of "I Don't Think About You" on Late Night with Seth Meyers is just breathtaking. You two are awesome! Much love from New Jersey!

Oh, it gets better!!! Keep them coming guys! You will be impressed with more of their Sing-Off performances. I hope you guys get to go to one of their concerts someday.

Singing like that is rough on your voice. That’s why Scott doesn’t do it a lot.

Can't wait to see your reactions to the rest of their performances. Get ready to hang on to your seats for the rest of the ride.

Back again love the reaction .✌🏾️👍🏾👏🏽🌟

Great reaction guys, I love Pentatonix. I have not heard Ali speak so much normally Marco cuts him off so stunned me twice lol. You guys both rock!!

I cannot WAIT for you to get to #10 -- you will just pass out! And by the way, I just discovered you last night and stayed up until 1:00AM watching your PTX reactions. And now I'm watching them all again from my desk; I am getting NO work done! You have me hooked; can't wait to see more PTX reactions. Love you guys!!

I can't stand it! I NEED to see your reactions to the rest of the Sing-Off! I know every note and every word of all the videos, but I want to watch YOU hearing and seeing it. There's more new stuff, even in these "old" videos. Just wait! No, don't wait--publish NOW NOW NOW!

My favorite performance💯💯💯

Wonderful love ptx

LOVE YOUR REACTIONS!!!!!

You guys are the best!!!

Awesome that you love this one so much. It gets Even better 😙

Nice reaction fellas. More epic performances to come

Oh gosh I wanna see their reaction to Dog days are over))

Yes! more PTX reactions! subscribed. : )

Just found you because i was in the mood to see this particular performance again. I saw reactor vids pop up and impulsively chose one at random rather than the performance alone. PTX AND SPN? I'm in for some deep dives into this video archive I have a feeling.

Can you believe they’d only come together as a group for the show? I think this is where they really started to click on every level.

So this is when I knew they were the group that would probably win! Can't wait to see your reaction to Let's Get it On and #12

Avi was amazing in this. It's one of my favorites from the series.

I love your reactions, I really do. If you love this, I cannot wait for you to react to Let's Get It On... I really wish that you were coming to PenatCon this year xx

Me love 12, the last one!!

I was a little disappointed that the judges didn't give a little bit more love to Avi for this performance. He was just a Powerhouse throughout this song and he would not be denied! But everybody had things that were so important I think the judges tried to cover everything and just didn't have enough time. But yeah I'm always amazed by Avi in this performance. I usually go from watching Avi then replay it to watch Scott, and on and on so I can watch everybody else especially Mitch's descent on the minor chord. But this was the video that made me take absolutely notice of Avi Kaplan! They also never mentioned all these overtone singing during the entire series I believe? That puzzles me too. Love your reaction and so glad you guys like it as much as we hoped you would!

The first part of the Sing Off was setting the bar high. This.................changed the face of A Capella music! Imo Wait till you hear 'Dog Day's'!!!

‘New Rules X Are you that Somebody?’ Please? Thank you!

React to their Lip Sync Battle they just did😁😍😂

Have you reacted to Episode 6 of the Sing-Off yet? It's also fab because Kirstie really gets to shine in this one...

Hi. Please react to "Problem" or "Where are u now" or "Rather be" by Pentatonix!!

100 thumbs up--WAY UP!!! I do miss Avi(the bass). However, Matt is killing it!

Yay!!! Yay!!! Yay!!! 😍

“They don’t cease to exist me” = They give you life?

First time poster to this channel, long-time lurker. Sorry. I love watching videos on your channel because I feel I have 2 friends watching along with me. I'm not young any longer (sigh) but still appreciate great music, however, people around my age are old way too fast. They have the "I like the way things used to be" mentality. They didn't like Pentatonix or Superfruit because they liked the old songs. Yikes, how did I get to be Peter Pan - I love most music no matter what. Anyway, thanks for being there and helping me feel I'm with you!

This is the point where the tv show started going downhill. The competition was over, we all knew who won, so the producers had to try different things (artificial drama, setting limits on PTX’s abilities, etc) to supposedly keep some suspense. From here on out, you can see that there’s another “worry” from PTX each week, that they may not be able to keep at the top, and there was a chance they’d fail, and blow it (as if PTX knew the meaning of the word “miss”). It might be next episode, technically, that marks the end of drama-free sing-off, but for sure, they blew some fake drama out of proportion for performance 7. You can see it on the other competitors faces, when PTX is done with another banger in the chamber, as they jump out of their seats for another standing ovation. The rest of this show is PTX melting faces and blowing minds (with a calmer song or two, probably enforced by the producers), and the rest of the competition just singing to sing, and waiting for their exit song (which they killed, each group, cuz they knew when it was coming).

You should check out PTX “how great thou art”. With Jennifer Hudson. Amazing.

From this point on, I think the other groups were basically thinking "We're in trouble."

You're right men, just 7y late ;-) They were tremendous. But, your sensitivity makes you real, in all your vids. Greetings from the other bank.

That's when everybody knew they were just there to eventually lose to Pentatonix!!

It’s ok guys they don’t exist me either! 😂😂

REACT TO NEW RULES PLEASE ILY

Im waiting for PTX - "new rules & Are you somebody" react.

FYI. I’ve heard that they don’t post to KZfaq unless they can do it live, as good or even better.

YAYAYYAY

Check out Dog Days. This is one of my favorite as well

*please react to O'G3NE - SING!!!!!* *you will love it!*