Katy Perry: "Part of Me"
Katy Perry's hit “Part of Me" appears to be about her estranged husband, Russell Brand. The lyrics go: “I just wanna throw my phone away. Find out who is really there for me ’cause you ripped me off. Your love was cheap, was always tearing at the seams. I fell deep and you let me drown. But that was then and this is now... You can kick the diamond ring. It don’t mean anything anyway.”
Source: Pacific Coast News