Eminem "Cum On Everybody" (1999)
Late in the running of Eminem's breakthrough Slim Shady LP is "Cum on Everybody," the album's biggest flaw. For a while the song successfully nails a tongue-in-cheek parody of the jiggy rap that ruled the airwaves at the time. But then Em and guest singer Dina Rae get sleazy on the song's repetitive hook and beat the not-that-funny "Cum on everybody" joke into the ground. It took a few more tries, but Em eventually figured out what to do with Dina's overtly sexual vocal style and scored a hit with 2002's "Superman."