I was a believer, but now I just don't know anymore
A very young man at my work thought Smashmouth wrote and sang "I'm a believer". And then I had to tell him it was really the Monkees. And then I had to explain to him who the Monkees were. And then someone else at work interrupted and informed him that the Monkees didn't write their own songs. Gene's reaction here in the film Stir Crazy (1980) is pretty much what came out of me:
Thanks for breaking this quirky, white girl's heart.