Adam Levine only knows about forty percent of the lyrics to "Oops, I Did It Again," but that didn't stop him from giving it his best shot in a rapid-fire "Tonight Show" karaoke game.

Levine, along with fellow "Voice" judges Blake Shelton, Pharrell, and Gwen Stefani, was at 30 Rock on Monday (Oct. 26), where they joined Jimmy Fallon for a few rounds of Spin the Microphone, which is like Spin the Bottle with a lot more singing (and, alas, a lot less making out.)

The Maroon 5 frontman was the first to be called onstage, where his assignment was to delight everyone with a cover of Britney's 2000 hit song. And delight he did.

It's not exactly the best Adam Levine performance in the history of the world, but Adam Levine is like pizza that way: Even when he's not great, he's still pretty good.