"More Cowbell" is a line from a April 8, 2000 Saturday Night Live comedy sketch about the recording of the song "(Don't Fear) The Reaper" by Blue Öyster Cult. The sketch featured guest host Christopher Walken as music producer Bruce Dickinson and Will Ferrell as fictional cowbell player Gene Frenkle.
Christopher Walken -"I GOTTA HAVE MORE COWBELL BABY"
Blu Oyster Cult
Bruce DickinsonL (more cowbell!)
I gotta feva and the only prescription is more cowbel.... I gotta have more cowbell