Adam Levine Battles Jimmy Fallon in Vocalist Impression-Off

Adam Levine Jimmy Fallon Tonight Show - H 2014

Have you ever wondered what the Sesame Street theme song would sound like if covered by Michael Jackson? Well, now you can find out. Sort of.

Jimmy Fallon challenged Maroon 5 frontman Adam Levine to a battle of vocalist impressions on Tuesday's Tonight Show. The Voice judge offered stellar takes on children's songs as performed by Jackson and Pearl Jam frontman Eddie Vedder.

Meanwhile, Fallon's impression of Iggy Azalea doing "Old MacDonald Had a Farm" was, uh ... let's just say it was memorable. 

On Late Night, Stephen Colbert — soon to be replacing David Letterman as host of the Late Show — sat down with Seth Meyers to discuss behind-the-scenes details of his cameo appearance in 2013's The Hobbit: The Desolation of Smaug.

And if you think you're a bigger Lord of the Rings fan than Colbert is, you're apparently mistaken, as he explains in the clip. 

Twitter: @_RyanGajewski