This deserved it's own clip for awhile.

Derrick’s rhymes bounce. I'd listen to more of him.

Derricks flows fuckin awesome, he bounces to the rythem so naturally, need to hear more!!

When uncles cross their arms, you know it's about to go down

This is an all-time classic. It gets better over time.

Damn Derrick just dropped onto the beat so smooth had to watch it a few times just to appreciate how smooth it was

This is so CLEAN......we need more Mack and Derek!!!!!

I like how he was like you acting like you’re going. Mack like naw you go. Then he just says ok and starts ripping

This is one of my favorites of him out in public. He let the dude start and end it when he could have just went off, but he realized it wasn’t necessary for so many reasons! That’s maturity people! Keep it real Harry the freestyle master! 🤜

You know it's a good freestyle when da boiz stop walking and start lighting up...

Dude the intro was blessed by the Universe. The way he said, Okay and went right on beat has the drums dropped. What the fuck it's like the Universe had this written already. The timeline is healing my friends.

The guest was pure fire. Somebody give this man a record deal

Have listened to this tens of times. Love it. Derek sounded awesome with his bouncy triplet flow, would love to hear more

Bro my dude Derrick killed it son!!!!

Glad to see Hip Hop is alive and well.

Derrek brought the heat and hung bar for bar with Harry and he really rode that beat too!!! Nice work!!

Top 3 guerilla cypher 🔥 grandma agrees

Born and raised in New Orleans area. Enjoyed this one.

Damn! Derreck's second verse be snapping🔥

Full video is worth watching, Derrick stood back watching, Harry mentions no one dare freestyle with him in his rap, and this is right after that rap.

The way he hit that flow. Straight southern fire!

THAT WAS DOPE!!! Nice! Even had the old lady into it! 🤣

I was glad to see this popped up on my KZfaq's algorithm. I've watched this so many times before and it NEVER gets old. Pure fire and Derek killed it!

Ohhhhh DAMN !!! This just became my favourite ever Harry Mack video and Derrick gotta sick flow 🔥🔥🔥

its cool when people collab with you

These guys are flowing together, making music together! i loved this!! +10! Period.

"I'm not only local, they know I'm global with the vocals......I got people poppin' they collars, rockin' them Polos"

WE NEED MORE COLABS WITH HIM, H-MACK!

Derrick and Mack were a vibe together. The fans want a part 2

Harry Mack is a God sent. Traveling the world to spread the joy of rhyme & rhythm is something special, he even has the public joining in the freestyle. We all need you, Harry Mack. Keep spitting those freestyles for you are what this world needs, a wondering lyricist that speaks the truth in what he sees with love. Much love from North Carolina

mack go the lyrics but the other guys thos the FLOW omg!

bro pass the vibe check, Harry come to Brazil bro ❤

Harry brings everyone together with his raps. It warms my heart seeing nothing but love in the form of young and old and you just feel like you could all go home together to have a meal have fun… now imagine no raps just everyone moving along not getting together its sad. Music is amazing in all forms.

I love the little lady standing right up front loving every word 😂

The world needs more of this. The hip hop world especially.

Written vs the actual definition of a freestyle

Bro I absolutely love that you show love to the people tryna spit too. Foreal. Homie was getting down too bruh. I knew it was gonna go fire when homie hit the drop with the bars. Foreal feeling other homies flow

I just love the old lady enjoying this battle to the fullest!!

This is my 30th time watching this I keep coming back!

Best DUO ever! That was SICK!

so much talent. imagine if this ws an actual freestyle

I cant stop listening to this. Great collab!

This is my favorite video, there needs to be another one, H Mack and Derrick's flows are too smooth.

Holy shit THIS IS THE ONE! The way you both bounced off each other was too fireeee!! 🔥🔥🔥🔥🔥

This man absolutely went off. This is what freestyle rap is ALL ABOUT!

Two different styles! Both go hard! Derick spits mostly about what I do as harry spits what’s going on around him in the moment.

My fave clip on H Mack’s channel

One of my all time favorites

holy with my lyrics like a biblical saint didnt hit hard enough🤯🤯🤯🤯

there's something about the flow change in a cypher that makes the bars hit so much harder. its what made the rap groups of the 90s so damn good.

I got goosebumps all over again. This is legendary 🔥🔥🔥

I watch this clip every day. Hopefully Derrek and Mack will reunite for another session in the future.

I’d pay good money to see them do this for hours!!

Wasn't expecting that at all he looked unsure at first then spit straight fire

Bros first verse was written but the rest was pretty dope, good times in New Orleans

How easy and spontanious he jumps in😮😮😮😮😮👌🏾

I don’t think homie was freestyling but he was flowing and killin it

Arguably the best freestyle that bumped heads with Harry...Derrick was a monster!!!!

This need to be recorded and released 💜

Loved to see that. New Orleans is my home and they got it done there.

Whoaaaa 🔥🔥🔥🔥

I missed when Harry ACTUALLY posted videos

That was Epic. Black was Ready

Both were amazing, so dope

That boy Derek gon get signed! 💜

This 🔥🔥🔥

my smile was never this wide

This guy Harry Mack is incredibly great at freestyling…. This guy Derrick has potential too…👍😎🎤🔥🔥

WOW!! You guys killed it!

Derrick needs to be promoted somehow ! I would listen to that every day

Derrick is sick. Unbelievable flow. Love to see you guys collaborate again ❤️

DAM, Derrick a beast!!!!

I'd love to see Derrick and Harry Collab on some tracks. That'd be fire.

Soon as he said I'm no punch line junkie I knew he was a real one 💯

Best Harry Vid ever!

“Global with the vocal” bar got Derek hyped too! Dereks first verse was written but it was niicce and the flow 🔥 had a few off the dome bars “jump on that mic and chilling with dat fly boy, might be a little lighter but I ain’t caring” bar was quick, off a written. The “flow like Em” bar was nice too - Mack genius as always and let Derek do his thing. Derek fought tendencies to battle, that’s just how it goes. Mack gave props and let Derek finish it off - class and respect . 👏 👏 👏 Incredible colab! Best one of this entire series

Derrick killed this shit dude. Real one.

Love Derek!… proper gezza !🙏🏻

This is an amazing piece of improvised art.

Dude was rollin a blunt behind them. Lol

Someone put Derek on a radio show and give him some air play, people need to hear him!!!

Art.

I swear I’d buy a whole Derrick free, the rhyme is nice, flow is something special

That's was brutal.

I love this clip so much, will always be one of my faves. Easily the best Guerilla Bars spontaneous collab, for sure. The way Derrek hits the mark when the beat drops, coming in. It's like they worked up the intro lol. So fire.

MONSTER bars!

man this was awesome... love it! Both went in hard

Darren had that N.O. bounce to his cadence. Loved it! Dude reminded me of a B.G. rhyme style

maaaan, the first instrumental beat is insane !!!! One of my favourite

Masterclass! Would be nice if you do a special, maybe one or two hours, with this cool dude in the Nike shirt ❤️ Harry come on, do this for your fans 😉

yo this was actually really good.

Niccas in the background looking like hurry up and finish rapping so we can rob you mf’s 😂

Oh my goodness!!!!! THAT WAS AMAZING!!!! 😖

i can see harry mack rappin with other people like this on a bigger scale, callab rapping could be huge. Harry is the best freestyle rapper

Derricks flow is ridiculous. 😮

I lovvvvve the mutual respect they each give each other!

might be my favorite moment on harry’s whole channel hands down. just great

It's criminal that this doesn't have over 1 million views.

Oh he need his own podcast interview!

I definitely will react to this rap freestyle (Cipher). Thanks Harry.