Katy Perry takes the stage of the 2012 Grammys to perform for the first time since her divorce with Russel Brand.  She took the opportunity to debut her new song “Part of Me” discussing the emotions surrounding her divorce.

Dressed in a skintight bodysuit, wearing a cropped, punk-blue wig, a ticked-off Perry, 27, prowled across the stage as she sang lyrics like “You chewed me up and spit me out/Like I was poison in your mouth/You took my light, you drained me down…You ripped me off, your love was cheap.”

Last week, Perry and British comic Brand signed papers to finalize their divorce in June; despite no prenup, Brand did not request spousal support or a share of Perry’s massive earnings. Perry signed her documents with a smiley face.

Still, an edgy Perry even tweaked the song’s lyrics to make the song even more pointed at Brand. One line originally read “You can keep the dog from me, I never liked him anyway.” For Sunday’s show, Perry sang “Keep your diamond ring/In fact, you can keep everything…Except for me.”

What do you think of the new song?

http://www.youtube.com/watch?v=MbB9o8VeOoI