Happy Birthday Katy Perry!+ Our Top 5 Katy Tunes![VIDEO]

Everybody's favorite California Gurrrrrl celebrates her 29th birthday today!

Katy Perry is one of the biggest artists in pop music, with 9 Grammy nominations and a 2012 Billboard award as "2012's Woman of the Year".

Katy has racked up hit after hit and with her new album "Prism", she looks to add to that total.

Check out the Z's Top 5 favorite Katy Perry jams!

#1 Teenage Dream

#2 I Kissed A Girl

#3 California Gurls

#4 Firework

#5 Roar