However, originally, the sketch didn't feature a cowbell at all. Instead of the titular instrument, Ferrell's first "Recording Session" script initially had Gene Frenkle playing a wood block.

Will Ferrell recalled, “I went to see [Walken] backstage, and he’s like, ‘You know, you’ve ruined my life…every show, people bring cowbells for the curtain call and bang them. It’s quit… ...

Will Ferrell Plays Cowbell at His Son's First-Ever Live Concert in a Nod to Iconic 'SNL' Sketch The comedian grabbed his famous musical instrument and joined son Magnus on stage at a charity event By ...