Pop superstar Katy Perry debuted a new video Wednesday, featuring her latest single, "Part of Me."  Watch it below.  The video begins with Perry catching her boyfriend with another woman, then for some reason she decides to cut off her hair in a gas station bathroom and join the Marines.  The singer debuted the single at the Grammy's last month, and it debuted at the top of the Billboard Hot 100,, The track is from the just released deluxe edition of Perry's "Teenage Dream" album, but was not on the original version.