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PWAHAHAHAHA I LOVE ELLEN!!!!! damn this women is freakn amazing, love her costume btw!

LOLOLOL ELLEN! THIS IS HILARIOUSSSS

LMAO

^^^ wow that's really funnyy i bet she got really surprised

Lol hahaha. Ellen is such a funny women.

That was so funny! I didn't expect a reaction like that at all!

LMAOOO
SHE FELLL xD
i love taylorr HAHA

lol i cracked up XD. Hmmm Taylor Swift is already so tall lol then i noticed her heels yikes O_O

Oh, I thought Kanye West was going to pop up somewhere.

LOLLLLLLLLLL
poor taylor xDDDDD

aha, this is hilarious. LOL

LOL LOL LOL
ELLEN <3
Taylor's reaction was so hilarious

Trust Ellen DeGeneres to pull something like this. ;]
Man that was the best laugh I had all day, she was so suprised! LOL

lol...that was so hilarious. I thought Ellen was gonna recreate the whole Kanye West nightmare again...haha.

omg, i watched that whole Halloween episode yesterday it was awesome XD especially when she scared Keillie Pickler hahah

lol, she fell. xD this just made my day.

You can easily be friends w/ Ellen. She is an amazing lady that you can really get along w/ and it still amazes me that she is the voice of Dori from Finding Nemo. I didn't think that Taylor would fall flat to the floor.. she's such a lovely girl. The prank was very funny.

omg ive watched this like 10x. LOL its sooo funny. especially taylor's face ahahaha

ROFL ellen is awesome haha taylor got really scared there.

One of the reasons why I love Ellen. Hahahah at least Taylor Swift took it well

That was hilarious!!

(some ppl are pissed about this lol...YT comments)

I almost died watching this. She fell straight to the floor with a THUD. lol
it was mean but so funny!!!! i love them both haha xD

that was one hilarious prank! lol
ellen really knows how to entertain..lol:)

LOL! awesome! ellen is super funny and taylors reaction was even funnier!

Ellen's magazine costume was super hilarious.
Taylor looked so scared, good job Ellen.

When i watched this i cracked upppppp! haha Taylor was so chill about it afterwords too.

Love how she falls on the floor.

lol. both ellen and taylor are awesome.

LOL XD, aww poor taylor she fell. but ellen is such a funny person geez, i laughed really hardd hahaha.

This is hilarious. I love Ellen and Taylor both, esp the latter, she's so natural whenever she's on TV.

Haha Taylor's reaction was priceless! Ellen's costume is funny as well.

HILARIOUS. haha, i've replayed for like 20 times but it still never fails to make me lol.

LOOOL ELLEN!

love herrrrr she never fails to make me have an ab workout with laughing

LMAO! she even fell. XD

that was funny. it was a very fast reaction!

LOL how funny. that floor looked so slick when taylor fell.

LOL, who doesn't love Ellen? hahaha, she's great

loving her costume, LOL that is soooo clever, ahaah!

omg, my boyfriend showed this to me today!
LOL it was the best fall everr!

LMAO! That is hilarious, gotta love Ellen. What a reaction though, falling flat on the floor!! XD

Hahahahaha....Taylor Swift literally fell to the floor when Ellen Degeneres scares her. Her reaction is quite priceless.

omg LOL. thats hilarious XDD.

LMFAOOOOO. OMFG BEST THING EVERRR ! <3 hahahaha
i died laughing when i saw thatt . ! xD and she fell to the floor . ! HAHAHA
oh man, poor girl<3 Ellen is amazing ! & her costume is love . ( L )

Taylor hit the floor pretty hard haha Ellen too funny.

haha i love ellen
and look at tayllors heels
damn O__O

exactly what i was thinking!
poor taylor! hahahah i liked ellen!

wahahahahhaha!!! That was hella funny!!!

LOLOL. I freakin' love Ellen. She acts like a teenager when actually she's 51 years old. xDD

this is so funny~ taylor's reaction really amazing!

Halloween Surprise, LOL. I thought Ellen was gonna dress Taylor Lautner as ... idk, something and give him to Taylor Swift. But her scaring Swift is a hundred times funnier LOL