Not only does the new film star Jason Segel, Amy Adams, Kermit the Frog and Miss Piggy, but some of our favorite TV stars like Rashida Jones and Neil Patrick Harris round out the cast. And just like us, they're not immune to the Mahna Mahna song.
In the video below, Jones, Harris, Ken Jeong and more of our favorite scene-stealers join the Mahna Mahna phenomenon.
According to the Hollywood Reporter, the video is promoting MuppetsMahnaMahna.com, a site where fans can upload clips of themselves singing the classic song.
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