f(x) STEP 20131224 SMTOWNWEEK 

they deserve a concert more than other artist

sulli's smile at 2:31 looked so sincere.. shes precious

They look like they're having so much fun here 😭😭 I miss them performing on stage 😭😭

They deserve a solo concert now..or world tour ...#SM

That smile of Victoria and Sulli to each other still melts me whenever I see this🥺 Sultoria wahhh I miss F(x) so much

I NEED A FREAKING f(x) SOLO CONCERT!!!!!!!!!!!!!!!!!!!!

F(x) should make their comeback song like this. great choreo and beat. i love this song. They should continue making songs like this. Especially like the songs from their album PINK TAPE!

This will forever be etch onto the meu's heart and memory... The only almost full concert by ot5😭😭😭 RIP Sulli you'll be remembered as the giant baby of f(x) and how much you enjoyed the performance 🖤🖤🖤

this choreo is so lively and funny!!

Omg sulli js so cute, she is so gorgeous when she smiles. Anyone else notice that. And victoria too god.

Oh my lord, Sulli is so freaking adorable.

f(x) has this vibe that can make a concert a party ❤️ and the fact that Sm isn’t promoting them properly doesn’t make sense 😩

Sulli is the cutest thing on earth ♥

How I wish they will perform this more often.. :( Love the way Sulli smile :)

이때 다들 진짜 행복해보였는데..

the best krystal pose ever 3:02 and sulli smile awww :)

The dance looks so fun. I hope f(x) get a solo concert soon

sulli is so pretty omg

I really don't understand those people who keep on hating f(x) specially Sulli. Can't you see, they're all so adorable.

This song is so catchy abd upbeat i love it

Sm let them have their own concert please I want to see amber have her solo part since in every concert groups have their own solo parts I really loved when amber dance "show it" though it wasn't complete and it was just a rehearsal (I guess) but the music and steps are really good it suits her style :)

I love sulli so much T____T

2:27-2:41 OH. MY. GOD. SULLI!!!

omg luna is so awesome she even can dance with those shoes

Thank you so much for this! I was literally clapping after watching their performance.. f(x) are the best and I love the steps so much!!!

I love sulli so much...i love my sullivan

Jinri was so happy that day, I love her smiles

Nice song, nice dance moves, nice performance ... They just need a concert ...

Victoria, is the most beautiful it's really a beautiful smile always dancing :) It's my favorite

IMAGINE BEING AT THIS CONCERT I WOULD SCREAM THE HELL OF MY LUNGS OUT

슈스엠에서 제일 깨기 어려운 스텝...언젠간 꼭 깨고 만다...사랑해 언니들..❤️❤️

Sulli ah, love your smile ^^

SM!! LOOK at how happy they are. They need their own fucking solo concert, especially with Red Light album coming out. I can already imagine what their concert would look like.

this is probably my favorite choreography in kpop history ever

I loved this song the first time I heared it and it really doesn't happen often to me! You just can't help but dance! In my opinion this is their best song! I'm so addicted to it ^^

can't lie, even i'm happy for fx 4walls comeback but i still miss sulli;( i just can't lie...

OMO SULLI SO CUTE!!!

Miss you sulli 😭😢

셜리 나오는 이 노래를 참 많이 좋아했는데... 셜리는 하늘 나라에서 행복하게 잘 지내고 있겠지!

LUNA'S IN THE MIDDLE IN THE FINAL POSE. LUNA'S IN THE MIDDLE. AAAAAAHHHHH

They are having their 1st solo concert on 30/31 Jan 2016. FINALLY

I love Sulli

When they raise their left leg on 'step' Victoria has the highest raise XD Queen Qian's flexibility :)

이 노래는 진짜 레전드다 ㄷㄷ This Song is Legend forever

Sulli!! So pretty and cute! Just love u sooooo much!

these days what i love the most is seeing their smiles while they perform :')

Thankyou for this fancam 😢.. this it the best... I miss f(x) like this ever... 😭💜....

Sulli so Pretty :3

Anyone watching in 2020?

This definitely shows that f(x) has the ability to hold their own concert! Come on SM!

Luna...:3If I don't get my hands of my phone,I could watch her perform forever:3

sulli I will always love you!

OMF I'm dying, how come I just see this NOW?? This is one of my fave songs ever. Omo, Amber you're killing me ;w; and Vic unnie looks extra gorgeous!

In this song Sulli looks so beautiful.... Wow....

you silly SM they...my FX NEEDS A SOLO CONCERT!!! THEY DESERVE IT! I BET THEY CAN BE A GREAT HIT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

This is awesome! Fx is so good. Vic your dance is awesome! SM #wewantfxtourconcert

sulli😘😘

The dance is so much fun!!!! Step is one of my faves off Pink Tape and I'm so happy the choreo is just as amazing as the song!!!

very pretty sulli :)

OMG SULLI

cute choreo.. omg f(x)

The iconic performance

one of my fav songs ever for f(x) ,, i wished that they made MV for it

sulli❤❤

Amber AWESOMENESS!!

omg i miss so much this era, they looked so happy *crying*

Sulli Krystal so cute pretty i love them

Soojung

하 존나 오랜만

sulli-gorgeous and cute,krystal-hot and sexy amber-amzing,victoria-beautiful,luna-preety

Oh. ....Victoria soo adorable here with white t-shirt and jeans

the way sulli smile and bite her lips!! so cute but hot for me

f(x) is amaziing

this is more fun to watch because you can see that they were enjoying.

no one's gonna talk about how krystal perfectly delivered her lines at 0:01 - 0:08 ?

The choreo stucks in my head!! So good

how in the hell does Luna perform with those platforms I barely can walk in them let alone dance and sing she's such a pro

i miss them ❤️

It’s 2020 and I still miss f(x)....

and thank you thank you thank you thank you sooooo much for this fancam!!!

Omo Ssull

five. five. forever. five. five.

BEST FANCAM!!!!! Thank you~

i need f(x) to perform this in freaking mama or gayo daejun they will slay

love the beat of the song

looks fun. love krystal's outfit 11.28

I wish Sulli had seen all the lovely comments she got here 😢

I miss Sulli smiling like that.. :(

they’re so adorable omg 🥺🥺❤️

the song is awesome! and the choreo it's pretty funny and entertaining! They seem so happy♥

I really miss this moment

f(x) should have solo concert T_T

Damn soojung has a really nice body proportion that makes her dance looks amazing 😍 i feel so insecured right now i want her body

Fancam is so clear! Thankyouuuuu

waaah I've been waiting for this fancam *v* Too bad I can't see the whole choreo since they are apart of eachother :/ Gorgeous Luna!!

Thanks! f(x) jjang! The choreography is so cool :)

Krystal I love you ❤

Krystal its so perfect

miss them so much

Sulli looks like Karen Smith in Mean girls