"She's Not Me," featuring Vanessa Bayer and Zosia Mamet, pokes fun at Lewis' child actress past
Brie Larson also helps singer-songwriter stop worrying about being "Just One of the Guys"
Video from rarities compilation inspired by late comedian Bill Hicks
Ex-Rilo Kiley singer Jenny Lewis will play with the duo
Indie-pop band has been on hiatus since 2010
Guitarist says group ended due to deception and greed