Saturday Night Live alum and Archer star Chris Parnell recently revealed a detail about the famous "More Cowbell" sketch that he had previously kept secret for years.

Parnell first joined SNL during season 24 along with new featured players Horatio Sanz and current The Tonight Show host Jimmy Fallon.

On SNL's season 25, episode 16, hosted by Academy Award-winning actor Christopher Walken, Parnell participated in the "More Cowbell" sketch,

originally written by Will Ferrell and playwright Donnell Campbell. Walken starred as music producer Bruce Dickinson as he attempted to produce Blue Öyster Cult's hit song "(Don't Fear) The Reaper."

However, Dickinson loved Frenkle's performance and wanted more of it, exclaiming, "Guess what! I've got a fever, and the only prescription is more cowbell!"

Originally titled "Behind the Music: Blue Oyster Cult," the sketch went on to become a hit with fans and has since been parodied and referenced many times across various media.

On May 14, 2005, Ferrell returned to SNL to host and revisited the role of Gene Frenkle by joining musical guests Queens of the Stone Age during their performance, playing the cowbell.

Ferrell has also jokingly claimed that the success of the sketch has ruined Walken's life as more people heckle the venerable actor about the sketch than anything else from his other many roles.