"Knocked Out" is the debut single by American singer Paula Abdul, released on May 4, 1988. It was the first song from her debut album, Forever Your Girl. It was written by Babyface, L.A. Reid and Daryl Simmons and produced in 1987 by the former two. Personnel Paula Abdul: lead and background vocals Babyface: songwriter, producer, arranger, keyboards, background vocals L.A. Reid: songwriter, producer, arranger, LM-1 programming, percussion programming Daryl Simmons: songwriter, arranger, background vocals Kayo: Memory Moog bass Pebbles, Yvette Marine: background vocals Charts References 1988 debut singles 1990 singles Paula Abdul songs Songs written by Babyface (musician) Songs written by L.A. Reid Songs written by Daryl Simmons Song recordings produced by Babyface (musician) Virgin Records singles 1988 songs Song recordings produced by L.A. Reid New jack swing songs