What should I use as a screename?

My names Kristina or Christina.... I want to be cute and/or music related... I like a lot of alternative rock like The Shins, Jacks Mannequin, Arcade Fire or Pop Punk like Panic At The Disco, Cobra Starship or Fall Out Boy..... dont diss about the music. Anyways I really can't think of anything, so please help ♥