As the record producer, guest host Christopher Walken regularly pauses the band's recording session to give a very specific note: he's simply gotta have more cowbell. Fictional cowbell player Gene ...

The actor who ruined Christopher Walken's life was Will Ferrell, who starred in the infamous 'SNL' "More Cowbell" sketch that has haunted Walken for 25 years.

We gotta have more cowbell—because Saturday Night Live is ringing in a major milestone.

Story continues after gallery. But here's something else you may not know: We would never have had More Cowbell without a touch of Jersey. Because it turns out the instrument at the center of that ...