Lissie - Pursuit of Happiness

Lissie's cover is Kid Cudi's Pursuit of Happiness tops my artists-who-cover-other-artists'-songs list.

Obvious reasons that I have to point out anyways:

1. She refuses to wear brassier but shaves her armpits.
2. Playing two instruments at one time never fail to excite everyone.
3. Being sober does not work for her on stage.