The sketch was referenced on various episodes of "SNL" in years to come. On May 14, 2005, on an episode that Will Ferrell hosted, the Gene Frenkle character made a reappearance on the set of "Saturday Night Live" as musical guest Queens of the Stone Age played their first song of the night, "Little Sister" – which features a jam block, an instrument similar to a cowbell. In his Gene Frenkle costume, Ferrell played the song's jam block part using a large cowbell along with the band, drawing much applause. Promotions for the April 5, 2008 Christopher Walken/Panic! at the Disco episode of "Saturday Night Live" referenced the "More Cowbell" sketch. The cowbell did not appear during the actual episode. At the end of the May 16, 2009 Will Ferrell/Green Day episode, Green Day performed "East Jesus Nowhere" with Ferrell on the cowbell. Ferrell's appearance was unrehearsed and it was unknown to Green Day that Ferrell would appear. Additionally, Ferrell was unfamiliar with the song and not aware of the sound-break near its end. As the sound-break continued, Ferrell elaborately played single "final" cowbell beats, expecting the lights to fade, then began to leave the stage. Lead singer Billie Joe Armstrong called him back, saying, "Wait, goddamn it!" and began his vocal. Ferrell came to the microphone and asked, "Wait, is this song still going on?" Laughing, Armstrong answered, "Yes."