locked groove at the end of their 1967 album The Who Sell Out. On ABBA's album Super Trouper, there is cheering and applause recorded before and on the locked groove of the B side, after "The Way Old Friends Do". On The Format's album Dog Problems, the feedback at the end of "If Work Permits" continues into the lock-groove, which repeats. Early copies of Pink Floyd's album Atom Heart Mother have the sound of a dripping tap repeating at the end of side two. The B-side of The Damned's single "Love Song" ends the song "Suicide" with an eternal yell in the lock-groove. Peter Gabriel's second album (also known as Scratch), The Boomtown Rats's album The Fine Art of Surfacing, and the Dead Kennedys album Plastic Surgery Disasters also utilize the technique. Sonic Youth's 1986 album Evol contains a locked groove at the end of the final track, "Expressway to yr. Skull (Madonna, Sean, and Me)" and the track's length is indicated on the label as "∞". British rock band Squeeze released their "Packet of Three" EP in 1977. On the original 7 inch, the A-side track "Cat on a Wall" ends with sustained guitar feedback repeating in the lock-groove. English new wave band The Look released their single "I Am the Beat" in 1980, which ended with the distinctive drum beat and vocal being repeated in the lock-groove. The electro act Planet Patrol released the single "Play At Your Own Risk" in 1982. The original 12-inch release sees the A-side repeating its persistent echoed vocal in the lock-groove. San Francisco noise-punk band Flipper released a track on the B-side of their "Sex Bomb" single, called "Brainwash" which includes a use of the lock-groove concept. The song is a simple punk groove, with barely audible singing, lasting less than 30 seconds, over which one of the vocalists apparently attempts to tell a story, reciting the following: "Umm ... okay, like. see there was this ... and ... w-and then the- ... nevermind, forget it, you wouldn't understand anyway." The music stops at the end of the "story," only to start up again. This process is repeated for a total of 12 times. The last repetition ends with the loop groove endlessly repeating the phrase "forget it, you wouldn't understa— forget it, you wouldn't understa—." Yer' Album, the debut album by the James Gang has a locked groove at the end