Cause I Sez So is the fourth studio album by the New York Dolls. It was released on May 5, 2009, by Atco Records. The album was produced by Todd Rundgren, who also produced their self-titled debut album. One of the songs, "Trash", is a reggae-style remake of a song that originally appeared on their debut album. The album peaked at number 159 at the Billboard 200.

Sylvain Mizrahi, known professionally as Sylvain Sylvain, was an American rock guitarist, most notable for being a member of the New York Dolls.