no
yes Katy Perry does sing firework
No, it was was Gotye.
Katy perry grew up in a very Christan family and sang alot in church. she did not actsactly learn to sing, she just was blessed with a good voice.
No Jessie J sings it
Teenage Dream by Katy Perry
yes Katy Perry does sing firework
I don't think she did. Katy Perry sings and records her songs but I've never, ever seen Katy Perry sing on commercials, sorry. If she did, the commercial would be old by now.
no
Carly Rae! Katy perry is autotuned
Sing
Sing
Katy Perry
NO
Russell Brand
No, Katy Perry did.
No
katy perry