happy high school musical anniversary everyone!!

Love how humble Zac is.

He gets so awkward and nervous when people started screaming for his shirtless pic it's sooooo cute!

Zac Efron: "He's just so shredded, he's like a monster" **Ellen shows shredded picture of Zac Efron** XD

All these people hating on Zac for not showing up to the HSM reunions when he's freaking promoting a movie coming out this Friday. Do any of the other HSM people have a movie coming out in the next few days? Thought so. He has prerecorded stuff for the reunion since he's busy promoting a movie that's coming out this week instead of reuniting on TV for a movie that came out 10 years ago. Just FYI, Vanessa has said in an interview that she does not want to see an ex and Zac is her ex. Another reason for him to not physically be there during the reunion. I'm pretty sure the cast meets up plenty of times in private when they have the time. I know that Zac and Ashley are still really good friends.

Troy bolted

1:19 There's sort of "That Awkward Moment" .... I see what you did there.

they showed a picture of him with his gf then one of him with Vanessa Hudgens. savage af

it's real sad how he ALWAYS misses the hsm reunions i mean as if it was bad enough that he missed on the christmas parade the concert the descendants premiere and now the 10th anniversary i understand he's busy and all and he probably doesn't wanna be associated with disney anymore cause he's doing adult things but so is the rest of the hsm cast and if they can take time off to reunite then zac should too especially when that's how he got big in the 1st place smh

I'm actually surprised how much I like zac efron now. I mean I didn't despise him when highschool musical came out because I was 12, wasn't that bad of a show the first time around but he's actually gotten to be really funny and his movies are awesome. I really liked "we are your friends".

Oh sure he can go on Ellen but not go to the High School Musical reunion

Zac... Zac, Zac Zac. I thought we were all in this together??

I didn't expect his voice to be so deep...

Omg I miss zanessa ❤️

Awww it was so cute that he was so shy when Ellen showed topless photo of him😍❤😅

That picture with Vanessa though

I'm a sucker for HSM since it is one of all time favorite movies!!! I'm sad he didn't make it to the HSM Reunion but I'm not mad. But don't tell the HSM fans to grow up because many LOVED him since he did HSM!!! Nobody should be ashamed to have worked in such a great movie series just because he's an adult actor now!! Happy HSM Anniversary guys!!:) Hopefully he'll make it for another one!!

TOM HARDY needs to be on Ellen!

Awk moment when a picture of him and Vanessa popped up and he looked away lol

I'm so glad he one of those Disney kids that grew up to be a better person and doing good things! He isn't drugged up and being a shitbag. He is so nice too!

So ... Why didn't Zac show up to the HSM 10 Year anniversary?!? Hmmm? ZAC WHAT'S GOOD?!?

He's so handsome.

I just love the fact that in the film Neighbors Zac Efron and Dave Franco are wearing costumes of two great characters from Robert De Niro. Zac as Travis Bickle and Dave as Jack Byrnes that scene was hilarious.

I'm watching your finding dory preview....its fire🔥🔥🔥🔥🙌🏾🙌🏾🙌🏾🐟

zac is so beautiful!

i still remember him from the movie "17 Again" 😎😊

His voice got deeper😂😊. I can't be only one that noticed that lol.

MY BABYYYYYYY 😭😍 and ahh, I died when he talked about Sami!! love them!!!! 😄 So glad Ellen asked about her 💕💕💕

When he said High School Musical I was ready for the comment section

Can she please just confront him about the hsm reunion?!!

😍😍 ZAC EFRON = BAE 😍😍

He's with a sister

OMG Ellen's show is airing in England now. Thank you

I love your show I wish I can go see it in person

He made it to the call backs & championship game that were both on the same day at the same time but couldn't make it to the reunion

HE'S SO PERFECT ARGH WHY CAN'T I HAVE YOU?!

I'm actually really excited too see this movie! &I neighbors 2!!

HAPPY 10th ANNIVERSARY HIGH SCHOOL MUSICAL!!

I love Zac so much.

2 faves in one video ❤️❤️

Zac Efron❤️❤️❤️😍😍😘😘😘😘

He's so amazing!!!!!!!!

I just love him so damn much 😂❤️

Everyone has that person they tear up whenever they see or hear their name bc their so attractive and zac efron is that person for me

Zac Efron is GORGEOUS !

17 again I love that movie

De Niro and Al is my favorite actors

Zac went from half asian and Mexican to a light skin black girl, he's gonna end up marrying a super dark black girl

Still ship Zac and Vanessa

I love that this episode comes out on the HSM 10 year anniversary

LOVE this! :D

Zac Efron = Perfeição! lindo

I love Zan Efron

Damn I've been waiting for Zac to be back on Ellen forever.

You know, everyone is mad that he doesn't go to HSM reunions b/c it was his platform to do other things. But high school helped my career and I'm not going to any of my High School Reunions. Thanks for the memories but you aren't obligated to relive them every time you make a career move.

first off Sami is a lucky girl and I'm happy for Zac he is with her....... second it looks amazing a legend and a rising star like Zac working together is awesome can't wait to see it and see them in this movie

Love him!

My babyyy😍 isn't he hoot omg

UPLOAD THE HEADS UP VIDEO WITH ZAC! 🙏🙏

I love him :3

ZAAAAC😍😍

UPLOAD THE HEADS UP VIDEO WITH ZAC!

Zac Efron😍💗💗

he is a very good actor - he can take off his shirt in SO many ways.

My dear Future husband Zac Efron love you Zac Efron forever n1 crush forever ❤️❤️❤️🥰🥰🥰

when he said High school musical 😍😍😍😍

So is Ellen the reason he wasn't in the high school musical reunion ??

The Paperboy was a sickly good film. McConaughey smashed it out of the park in it that film

alright good thing Ellen did not disable the comment for this one. HE HAS THE NERVE to speak of HSM not remembering his song with Vanessa and not attending the reunion he is so hot and humble on camera but I really don't know how he actually is IRL tbqh

We're all in this together!

He didn't go to the HSMR because he actually has a steady career unlike most of that cast lol.

Lucky girl❣

I just totally love Zac Efron. I could've given you a couple of reasons why I am not an ordinary fangirl, but no. I'm totally into him.

Saw the movie!!!!!! It was awesome!!!!!!!😄😘😍😍😍😍😍💍💍

my high school lover

I love him :3 *-*

Everybody saying he is so horrible for not going to the high school musical reunion he is really busy and probably the most famous out of the other main characters on high school musical and he has other movies to film and talk shows to be on he isn't going to drop everything for high school musical reunion that he attends every year

Parts of Dirty Grandpa was filmed where I live (:

ZAC 😍

I love how everyone in the comments is bashing Zac for not going to the HSM 10th anniversary reunion. :)

magnifique 😘

I would love to see him play basketball as a wildcat again w/ that bod... and also sing get your head in the game 😂😍 plz do it...

he can talk about HSM but he can't go to the reunion? yeah, we're all bitter, zac!

Ohh Zac

When he said "That Awkward Moment" I was like... hey that's one of his movies! LOL!

My baby ❤️

happy hsm anniversary!!!!

que homem mais lindo, apaixonei

lmfao @ the guys in the audience clapping awkwardly... Dirty Grandpa was surprisingly a really good funny movie. And Zac Efron is such a hunk!!

He’s so fit 😍

Boy oh boy

Now back to this beautiful who didn't show up at the hsm reunion ...zack what's good??

ELLEN YOU SHOULD HAVE ASKED HIM WHY HE DIDNT GO TO THAT HSM REUNION. YOU HAD ONE JOB ELLEN JUST ONE

Robert does great movies like Silver linnings, American hustle, Joy, and many more!!!Zach and Jennifer Lawerence need to do a movie together!!

high school musical ahhh Zach efron

zacccc boy

WE'RE SOARING! FLYING!!! THERES NOT A STAR IN HEAVEN THAT WE CANT REACH!!

ID HAVE ASKED WHY THE HELL HE DIDNT GO TO THAT HSM REUNION GOSH

Can't be at the reunion, but being at Ellen no problem!

are we all really in this together Zac? Are we?