The epic video for the title track of Jackson's bestselling album has become so iconic that it's easy to underestimate the song itself, one of the strangest pieces of music he ever released. Written by Rod Temperton, the song was first called "Starlight" until Quincy Jones asked Temperton for another title. "The next morning I woke up and I just said this word ['thriller']," Temperton says. "Something in my head just said, 'This is the title.' You could visualize it at the top of the Billboard charts." Temperton also revised the lyrics to take in Jackson's love of horror movies. The track took the percolating-funk feel of Off the Wall to a grander, more theatrical level, with its supernatural sound effects – howling werewolves and creaking coffins – and the creepy-crawly narration of actor Vincent Price, a friend of Jones' then-wife, Peggy Lipton, who nailed his part in two takes. The weirdness of "Thriller" didn't end there: While the song was being mixed, Jackson's eight-foot-long boa constrictor, Muscles, slithered across the console. The last of a mind-boggling seven singles from Thriller, it hit Number Four on the charts.