"Ain't Got Rhythm" is a song Sung by Phineas and Swampy from Love Händel. This song describes Swampy's reasons for not wanting to be a part of a Love Händel reunion, with Phineas eventually winning him over. Sung in the Tri-State Area Public Library in "Dude, We're Getting the Band Back Together!." The song is also on the Phineas and Ferb Soundtrack and is one of the creator's favorites. In Phineas and Ferb's Musical Cliptastic Countdown, Ain't Got Rhythm was the 8th favorite song chosen by Phineas and Ferb fans.