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Ready for the whole shebang?

Eariler today, we teased you with a few pics from Darren Criss and Kermit the Frog's cutesy pre-Oscars duet rehearsal…and now we have the full performance just for you!

First teased on E!'s live Oscar countdown, the duo gives us a rousing performance of "Rainbow Connection" at the Hollywood Roosevelt Hotel Sunday, singing in harmony as the Glee star strums away on his guitar.

Criss and Kermit performed together in celebration of the Oscar-nominated song "Man or Muppet" from The Muppets, which (sadly!) won't be performed during the actual Academy Awards.

Pretty great, right? What did you think of their duet? Sound off in the comments.

PHOTOS: 2012 Oscar Party Pics