I admire Seohyun's professionalism, she had two wardrobe malfunctions that I didn't even notice until my second time watching this!

In my opinion, taetiseo is best vocal line in kpop. They all have solo album too. Their visual, vocal, dance are perfect combination

Seohyun's calm while having problem is really attract me

I love how seohyun tries her best in every single performance and always looks energetic and happy!

서현이 춤추면서 떨어진 모자 날리는거랑, 인이어(?)인지 뭔지 선 빠진거 집어넣는거 진짜 대멋지다... 프로야 프로 👍🏻👍🏻

im such a big fan of girls' generation when i was a kid and now that im a wizone, izone's yujin, chaewon, and yuri covering this is such a win for me they slayed this so much!

I've always thought Adrenaline should've been their title song. Holler is good but this song is so much better imo.

와.... 서주현 페도라 떨어졌는데 당황 하나도 안하고 원래 퍼포먼스인 것처럼 하네 ...멋있다 프로페셔널.. 역시 서현 역시 소녀시대

Can I just say how enamored I am with Seohyun? Wow. Every single video of her, she just glows!!! She looks absolutely gorgeous in her outfit here! Well what am I even saying she looks beautiful in everything she wears because her body is perfect. The fact that she had a wardrobe malfunction that I didn't even notice until I saw the comments just made her 100 times greater. She totally nailed this performance! I mean come on. She's just amazing! She's lovely, classy, humble, intelligent, sweet, kind and funny! She sings and dances so well too! You go girl! :)

I personally like this better than Holler, they should've made a comeback with this instead (:

진심 태티서 노래중 최애곡이다.. 물론 다른 노래들도 좋지만 이노래는 잊혀지지 않아

Taeyeon lights me up with her smile and shyness, Tiffany smelts me with her eye-smile, and Sehyun knocks me down by her powerful shake! You guys has done marvels to us! Keep on going! Amazing performace!

와 내가 귀찮아서 내가수 영상도 거의안보는사람인데 태티서 이건 진짜 대박이 왜 스엠은 이걸 타이틀로 쓰지 않은건가요 할라보다 이게 훨배좋은데!!!어쩌다본 아드레날린에 소시입덕할뻔 와 이건진짜 맨날들어도 안질린다

Seohyun just prove how professional she is

9 years ago I was there, watching this showcase live and for free, thanks to a kind security guard who let me, one friend and a Japanese mother and daughter enter for no specific reason. There's no way to express my gratitude for this human being, I hope he was blessed

Seohyun is stunning as always! I didn't even notice the malfunction, she is a pro!

Poor Seohyun she always have problems with her clothing or microphone.. but handled it like a pro! I love adrenaline more than holler^^

Seohyun had wardrobe malfunction but a professional has nothing to worry about

Back then i was Sone for lyfe!! And now as a WIZ*ONE seeing Yujin Yuri Chaewon covered this make me extremely happy even ma bias Yuri cover my SNSD bias Taengoo part😭😭👏🏻👏🏻💕

im here cause izone cover this and this truly amazing, as expected from legend GG

who's here after Chaewon, Yuri, Yujin from IZ*ONE covered this?

여기서 개인적으로 제일 킬링은 티파니가 뉴뜬의 앱뽈 이러는 거..

I always love watching Seohyun dance during the chorus because she jumps so high. Lol I love seeing them have fun and enjoying what they do.

TTS live singing is always soooo goooddd... even better than the CD.. the choreography also really good.. seohyun split..

I never noticed before how well Seohyun can dance o: ♥

Seohyun is so professional.

Thank you so much SM for releasing this 'Adrenaline' performance from the showcase. The choreo is so great and it will be so wasted if it's not broadcasted enough. I hope SM can post other songs from the showcase too.

Lol, no one asking y'all where you came from. Just appreciate this beautiful masterpiece.

Watching this again in 2022 for a SNSD marathon cus of their comeback ❤️ Still one of my favorite SNSD songs of all time!

Seohyun is in pants, Tiffany is in stockings, but Kasper is the only who went ahead and touched Taeyeon's bare legs. Hahahaha! And I like that Taeyeon didn't hesitate to actually touch her partner too. Honestly, the dance feels more natural that way. Taeyeon's chemistry with Kasper on stage is seriously daebak! I'm even starting to think it can rival SehunxTaeyeon's chemistry.

I wish they have a mv for adrenaline. This song is my most favourite song in their album. Both choreograph and melody are fantastic. Love it!

She felt her hat falling off and immediately flung it away with style. RESPECT to the maknae! A true entertainer and artiste!

Seohyun really shined with this choreography!

TTS must comeback now.

It's unbelievable how years past by. I remember whole comeback with the album and can't believe it's more than 6 years now 🤯

퍼포먼스와 3명 가창력, 다채로운 표정, 무대장앙력이 다 어울려진 무대를 모든사람들이 봐야하는데!!! 이 곡을 더블타이틀로하던가 방송에서 더많이 보여줬어야했는데... 너무 아쉽다. 명곡중명곡인데 ㅠㅠ 소속사가증말!!!!!😫😠

Adrenaline is the song that you didn't realized how old this song was when you listend to. Damn!! i didn't realized until i watch izone cover to it then i watched because i miss snsd. Feel old again....

Taeyeon is my bias but damn Tiffany killed it here!

It's nice to see people stopping here after Izone's cover. I love SNSD and TTS for life and people listening to them is very much appreciated. And also I am a Wizone too. So double treat.

Can people stop debating whether or not they're singing live or not. There are many times they've showcased their vocals: on radio shows, sketchbook, festival and concert performances, and other tv/music shows. Just because SM might've made them lipsync or use prerecorded audio does not mean they are bad singers. It just means that dancing and singing well at the same time is not their forte (this is usually the case for early idol girl groups, especially during the WonSoKa era). But does not being able to equally dance and sing a bad thing? Nope. They've shown their talents for 7+ years and as a fan, you need to have certain expectations, especially when it comes to SM....

Not at me searching this because minju mentioned that she would have wanted to do this unit stage with kkura and eunbi ^^

Seohyun really got a burst of adrenaline here haha ^^ It makes me happy to see her so excited and energetic ! Cute maknae !!

Here after IZONE's YuYuChae cover on their concert ❤ Yujin and Taeyon's voice resembles in this song.

I've been a SONE for a long time 'til now but then KZbin recommended this after I watched the cover song from IZ*One's Yujin, Chaewon and Yuri. ❤️❤️❤️❤️ So proud!

i miss TTS

This song should have been the title track! There is so much more choreography and i like the song a lot better than holler. Best song on the album *thumbs up*

I'm here cause iz*one covered it, we love queens covering legends 💕

taeyeon's smile is so bright and genuine here. facial expression wise she steals the show here

이곡은 진짜 언제들어도 안질리고 신나....

Taeyeon and Tiffany are especially born for this. Seohyun is such a cutie too

Seohyun so cool in this performance!

i'm here because samdaengz 😍😍 tts song is soooooo perfect

Seohyuns so professional! She just casually rips her hat off her head at 1:07 like it wasnt even bothering her

for those who is still wondering it's live or not, listen at 0:44 and 1:20 at 0:44 : "oh wait! Neoman chaja danyeo" at "danyeo" part, Taeng slipped the note a little bit. Yes, it's because of her moves. It sounds different with the studio version. at 1:20 : "neol dulleossan sesangi hwieojyeo" at "hwieojyeo" part, we can hear Tiffany's breath at "hwi". It's like she's blowing the mic. Which we can't find at studio version. Yes, it's live. And remastered.. :)

The way Seohyun threw off her hat is so cool.

Seohyun you queen covering up those malfunctions so well ❤️ also did anyone else notice that while Seohyun had changed out of her heels from Cater 2 u and Holler to boots but Taeyeon stayed in thin heels? All three of them are honestly queens. SONE forever ❤️ ❤️

Beautiful Seohyun♡

the fact iz*one performed an album track, snsd's discography is pure gold. listen to its demo by velvet angels

izones cover made me miss them so I came back

TTS is always the best..but I like my bias the most..Seohyun~~~

ahhhh !!! the album is really amazing ! it's pity that holler was the title track !!! I LOVE ADRENALINE !!!! everything about it is PERFECT !!! SM how can you give us half of Seohyun split !!!!! She's shinning in this comeback !!!! TTS saranghae !!

Yes Seohyun! Shake it baby, shake it!

They are always gorgeous,pretty,and nice.

I love this song and performance but this needs the bright and colorful outfits!

I really like seohyuns part in adrenaline...oh and i like adrenaline so much not holler... Ps. Tiffany is really mature looking than taeyeon.

They just charmed my socks off with that performance!! Totally should've been their promo song

omg i fall in love into kasper & Taeyeon~~

I just loved how Seohyun thew her hat. It was a wardrobe malfunction, but it wasn't even obvious. That was awesome, and so were their outfits, and so was this song, and so was this dance. ;u; I personally like this more that Holler.

Seohyun’s reaction of the problems are gold. How perfect she is

Love that song Adrenaline of Girls Generation, They can sure move with heartbeats!😍😍😍😍😍❤❤❤❤❤

Adrenaline’s choreography was so beautiful

티파니의 apple 발음은 마치 딩초때 처음 들은 정석 apple발음 같다.

갓드레날린이라 불리는이유가 이영상에 다 있네..

I don't care if they're lip synced or not, I love this song on this album so much

SNSD-TTS 'The best Trio' 🔥

Bless SM for releasing this performance.

who came here after watching taeyeon's solo part with kasper in why mv ( dance ver) ?? gosh they look so good together

omg this song is so tiring and look how stable they sing and sync their every single dance moves. their insane training pays off. perfect as usual!!

I'm completely in love with this song.

이 노래는 들을 때마다 개설렌다

Seohyun has always been charming, but even more so in the performances for this album. So breathtakingly beautiful and bright. Love her.

my beautiful seohyunnn ♡ and lovely tippany and taengoo :")

1:07 Seohyun.... YOU'RE A PRO

I lovee this song, I just knew about it yesterday

me encanto la coreografia y el vestuario de Seohyun ♡

That was fun. I liked the green and red lasers part the most.

I love the dance choreography for Adrenaline :D it's so exciting and easy to follow(ish)

Their hair looks perfect

Seohyn sooo incredible

we are always one...we are always one...we are always one...we are always one...

I love this choreography!

For audience in here , actually TTS are singing live in this comeback , but SM recorded this video and replace the song .Hence , we all can hear they arent singing live , actually they are , SM does something on it

I see thats why it is so familiar 😍 Iz*one and TiTaeSeo jjang ❤❤❤

they look like they're having so much fun, haha~ and i love the choreo!!

Lol Seohyun's hat and mic were working against her yet she still pulled it off perfectly

TTS NEEDS MORE THAN THIS 1080 MV PLEASE SM

OMYGHAAAD SEOHYUN EVERYTIMEEEE EVERYTIMEEEEEEE. You give that look tells 'IM SOOO HOT LOOK AT ME' EVEN COSTUME MALFUNCTION CAN'T STOP YOU OMYGOOOOOOOOOOOOOD

I could hear their vocal clearly, and the music/audio was editted by SM and change it with audio studio ver. this is awesome !!!!! Thanks SM : )

Yey! Thank you SM for uploading this! More please..... >.

Seohyun is so HANDSOME~~HAAAAA