The famous SNL skit staring Christopher Walken
Christopher Walken 2004: “I hear about it everywhere I go. It’s been YEARS, and all anybody brings up is ‘COW-bell.’ I guess you never know what’s gonna click.
Christopher Walken 2007: “I was eating in a restaurant in Singapore, and an Asian couple was at the next table, and the guy turned to me and he said, ‘Chris, you know what this salad needs?’ I said, ‘What?’ He said, ‘More cowbell.’ Recently a guy asked me if I would say ‘More cowbell’ on his answering machine. And I did.