Ashley Benson and Lucy Hale from PLL do 'NSync 

they way Lucy found the perfect time to join and grabbed Ashley’s hand and ran in together, broooo I want that friendship 😭

They just sit down at the end so casually like it was so normal

lol. Lucy's like "yup. C'mon ash"

Haha, they just sit down like... 'That's normal'! Lol

I love how Lucy grabs Ashley hand and she is basically like come on friend let’s join lol

They made it seem like it was the most natural thing in the world

I love how Luce jumps onto the chair and just crosses her legs... So cute -3 little lucegoose (:

Awww, both Ashley and Lucy are amazing!

i love how they're just casually sitting there getting their hair blowdried :)

Lucy’s Hale side of “Cinderella Story Once Upon A Song” came out, and Ashely Bensons “Bring It On: In It To Win It” cane out 😂😭😭

its so funny on how each staff and crew member knew to dance step off by heart so cool!

Bongo has some badass crew members! Ha, I love how they all knew every move, and then returned back to their work just like that.

OMGGGG I LOOOOOVE ASHLEY & Lucy &&&& I COULD WATCH THIS EVERY DAY ALL DAY & never get tired of it !!! THIS VIDEO IS SOOOOO CUTE !!!!! #Ashcy !!! Or #Lushley ! Haha ❤️❤️❤️❤️❤️( I think Lushley is better & pronounced easier !!! ) okay YESSS ! I SHIP #Lushley 's friendship soooo much ! Hahah ❤️❤️❤️❤️❤️

haha i love how lucy and ash right after the dance get back to work like tht was normal xD

Love it! When Nsync comes on, you automatically dance like no one's watching, regardless of where you are ;)

i love these two them and troian are my favourite cast members

the hell just happened? LOL. I love them both.

Spontaneous dance offs are fun. :)

I never knew Lucy could dance, I hope she dances in her future music videos.

Love how they just jump in like it’s nothing

I love pretty little liars

at 0:15 i was like wtf why is that girl dancing ! at 0:31 Oh cool they r good dancers at 0:53 OMG THAT'S AWESOME !!!

theyre both so pretty😍😍😍

OMFG they just go back and act like nothing happened :')

They are both so cool i love them sooo much!!! I mean how can you not??

My friends and I did a flash mob at our school's amphitheater

That was awesome! lol

LOVE these two

I miss the 90's... :)

THE WAY THEY GOT THEIR ”model” FACE JUST LIKE TGAT

Love this

still love me some nsync old days :)

The most early 2010's thing ever!

I would love to meet Ashley and Lucy, and yes I am an 18 year old guy who watches PLL RELIGIOUSLY!

LOL! This was hilarious!

OMG Lucy Awesome ! As Always !

At first I was like Wth is that girl doing?

Amazing

@MileySelenaxxxxx ikr Lucy is awesome she's like come on let's get in the dance LOL !!! they really can dance

I love Lucy's top!

Lucy

I dunno abput you but when I googled their heights theres only 1 inch difference in their height so lucy really is small cuz even thought theyre only 1 inch apart she still looks so small shes so cute omg😍😍😍

CUTE-3

@MsCyra101 omg THANK YOU! i thought i was the only one who felt this way.

Lol so cute ❤️

Ashley

Queens

that whole dance isn't in the music video so how did everyone in the crew know the dance..?

bye bye bye - Nsync

The way the girl came in at the beginning... LOL... wtf :o

That will be me and Desiree

They can dance haha :)

Flash mob!

Best friends

@MsCyra101 i'm old :\ i used to love that song as a child lol

I was wondering why that girl was randomly dancing in the center..

Nsync version of Harlem shake =)))

They're sweet young things.

Awww haha!

@Naturalfight I met Lucy before and I had no idea who she was. She didn't say a word when I met her prob. cuz her ex bf David Henrie was who I was interested in. But she is really pretty in person and I loved meeting both of them.

hard to argue

cool

i wanna work with them !

2022?

😍😍

que dança era essa e ´pra que q era alguem sabe?

lucy hale is the prettier version of selena gomezzz

Is this some kind of flash mob?

@MsCyra101 I'm not old. I'm 17, and I know N'Sync.

so its a flash mob!!! some one asked what is Nysnc - lol - before your time i guessss!

oh.my.fucking.gosh. that was my childhood jam! had the BIGGEST crush on justin timberlake

que musica e essa?

0:03 why is Lucy shaking Ashley's hand? ^_^

that decision wasnt the best idea he had for sure

E aquela doida, o que ela ta fazendo com o secador? Eu ri! uahsaushaushaush

They act like such divas

the black girl initiates this all , LOL

I love how Lucy being so tiny gets to Jump up and down to get on and off of the chair and Ash does it all boring

Ashley Benson.. tu me mataaaaaa!!!

look at lucy, there is a reason why people think the fame has gotten to her, plus her bf dissed her, this is why =/

@xBecca16 Don't be offended if I ask you this, but seriously how old are you?

it's so HOT everything

NSYNC! when teen music was good! now we only have justin bieber and the disney shit...

Lol die jongen kan niet van hun afblijven

It's N'sync- Bye Bye Bye

Kid PG

NSync ????

I know the artist N'sync But not this song.

haha thanks. ALSO her boyfriend was kind of a douche... breaking up with someone is hard, and its understandable to be angry, but to voice it over twitter like that is just plain immature. its clear why she decided to break up with him in the first place: because he makes rash decisions like these

@TheFear1611 bye bye bye

@theparist1 nsync bye bye bye

@ruba141800 Bye Bye Bye

What's the name of this song?

lucy looks kinda snotty