Petra Haden (born October 11, 1971) is an American violinist and singer. She is or has been a member of several bands, including That Dog, Tito & Tarantula, and The Decemberists; has contributed to recordings by The Twilight Singers, Beck, Mike Watt, Luscious Jackson, Foo Fighters, Green Day, Queens of the Stone Age, Weezer, The Rentals, Victoria Williams, Yuka Honda, The Gutter Twins, and Cornelius.