Today marks superstar Katy Perry's 28th birthday. Over the last five years, Katy Perry has kept us entertained with her songs, outfits, and all the drama that surrounds her and her 'man'-friends. Her songs have inspired, made people laugh, cause controversy, but mostly gave people something to relate to. To celebrate this music icon, we picked five of our favorite Katy Perry songs. Enjoy.

Firework

One That Got Away

Teenage Dream

Last Friday Night

I Kissed A Girl