Katy Perry and her birthday cake HQ

[onsapitzRENEEeee]

that awkward moment when you watch this after their divorce.....

[katykatforeverx]

awww <3 :')

[KATYPERRY4EVER123]

Nobody is perfect, exept for Katy!!! <3

[BubbledButterfly]

Epic!.. It's a real classic. <3

[SuperLyria]

Ohhh ;) shes so funny , katycats -3 i saw her live in newcastle 2 days later ;)

[LunaIsAce]

I was gunna say, ''don't jump on that cake'', and she didn't, she threw it at the audience. xD

[zcb033100]

its funny how angela just walks in and points at the mask LOL

[disghurlx]

KATY YOU BABE. Angela is so cute!

[redroxi]

I love that Angela's there too. :)

[harley97i]

I was there xD in belfast singin happy birthday to the beautiful woman ;D i didnt get any cake though :( haha

[Lilpulse12345]

LMFAO SHE WOULD!!! haha I LOVE YOU KATY

[JonathanMiranda1000]

omg they trow her a pice of cake in the then she get mad n yell at them n in the other video u can see when they trow her baca again lmao o.o

[sigo3453]

''I will fucking come out there'' LOL why did she say that?

[lovelycupcakes1]

@sigo3453 someone threw a piece of cake back at her and it hit her in the face.

[KATYPERRY4EVER123]

Sooooooo wish I was there

I LOVE KATY PERRY

[KatyPerryShani]

Naw, she's so amazing :))

She shared her bday with the amazing KatyCats in Belfast , we love you MommaCat <3 Xx

[corniscorny]

Haha this was perfect I love u Katy your my idol mommakitty!! Katycat 4 life!!

[KatyCat717]

I LOVE HER.

[hyperonmoney]

if only she wasnt illuminati

[Katy25PerryFan]

shes really amazing

love you mommacat

[i8cupcake2]

Wait is that the real russell? the one that angela was pointing to and she was laughing and looking at the whole time.

[i8cupcake2]

Wait is that the real russell?

[CassCush]

Is it me or does that not look like Katy Perry...?

[yahnle94]

happy birthday my idol .. hehehe

[emilnoestar]

ONLY KATY LOVE YOU SOOOOOOOOOOOOOOOOOO MOUCH KATY 

[LissyLovesLA]

Only Katy would do that :D

[LissyLovesLA]

This woman is amazing ♥

[Boogleberry100]

I was there!!!!!! She is class!!

[lovelycupcakes1]

If I was there and I get hit in the head, Imma be like, who cares? It's Katy Perry's cake and it looks delicious. I could eat some right now.

[TheOneThatGotAway08]

Angela !!

[kissesnarak]

Happy 27th Katy!

[Smackin321]

Best video of this so far!! AHH!!! Only Katy!!

[GATE19A]

Happy birthday katherine <3

[Katyciada]

Russell's face xDDDD

[Razailey]

OMG :') LOL RUSSELL'S FACE EVERY WHERE :P!!! LOVE ITTTT