Adam Levine Proves He's a Musical Chameleon

Adam Levine has shown he can rock a Top 40 ballad like no other, but on Tuesday's Tonight Show, he proved he's a bit of a musical chameleon

In a round of "Wheel of Impressions" with Jimmy Fallon, the Maroon 5 frontman impersonated legends like Michael Jackson and Frank Sinatra

But the most shocking part of the game — Levine doesn't know all the words to "Head, Shoulders, Knees and Toes." No comment...