STAGE TUBE: Darren Criss & Kermit the Frog Perform a Duet!

GLEE's Darren Criss and Kermit the Frog performed a duet for E! Online. They sang "Rainbow Connection" at the Hollywood Roosevelt Hotel for E!'s live Oscar countdown. Their duet is in honor of the Oscar-nominated song "Man or Muppet" from 'The Muppet Movie.' Check out their performance below!

The Muppets have been a worldwide phenomena for more than 50 years. From their humble beginnings on local television and variety show appearances, through their incredible success in six theatrical motion pictures including the original 1979 "Muppet Movie", their Grammy-winning music career, and their Emmy-winning international television hit "The Muppet Show", the Muppets have gone where no troupe of frogs, pigs, bears, and well, whatever, have ever gone before.

The Muppets made another big screen splash this year, more than 30 years after their big screen debut. Featuring the talents of a slew of stars - Jason Segel, Amy Adams, Rashida Jones, Neil Patrick Harris, Katy Perry, Whoopi Goldberg, Billy Crystal, Liza Minnelli, Katy Griffin, and John Kraskinski, to name a few.