The photo has 37million difference..

It's a whole different place anyways...

katy is sad.

i like Katy Perry and she also likes Gaga <3

enough you guys, seriously. this isn't a competition. gaga is on her own level anyways

STOP. KATY'S MUSIC IS RESPECTABLE. Only person after MJ to have 5 #1's in one album.

Lol yeah paws upppppp

Gaga is the best !!!

JAJAJAJ QUE LA KATY PERRA TAN APENAS Y LLEGA A LOS 10000 MIENTRAS GAGA MAS DE 8 VECES MAS QUE KATY JEJEJJEJE PERDEDORA

I don'y get it

My respects to Katy Perry.... she have good music

I SEE THE DIFFERENCE.....one says 0:11 at the bottom and one says 0:13 xD LOL jk I'm just being weird

LOL i like katy perry too.