Petra Haden is an American violinist and singer. She is or has been a member of several bands, including that dog., Tito & Tarantula, The Rentals and The Decemberists; has contributed to recordings by Beck, Mike Watt, Luscious Jackson, Foo Fighters, Green Day, Weezer, Victoria Williams and Yuka Honda. She is the daughter of the jazz bassist Charlie Haden; the triplet sister of bassist Rachel Haden (her bandmate in that dog.) and cellist Tanya Haden (married to singer and actor Jack Black) with whom she has performed as The Haden Triplets; and the sister of bassist-singer Josh Haden, formerly leader of the group Spain.

William Richard "Bill" Frisell is an American jazz guitarist and composer. He is, along with John Scofield and Pat Metheny, one of the best-known and perhaps best-regarded jazz guitarists of the last decade. His playing, on both his own records and his collaborations with others, has covered an impressive range of styles.

They made a record together under the unlikely name of "Petra Haden and Bill Frisell." Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.