Jack Black and Jason Segel Rock Christmas for Charity (VIDEO)

Jason Segel and Jack Black are funny guys, and this year they’re getting serious about charity and Christmas via song.

The Gulliver’s Travels stars teamed up to record a Christmas mash-up of “Peace on Earth” and “Little Drummer Boy,” which is available for purchase on iTunes, with all proceeds will benefit Blue Star Families, a charity supporting military families.

The guys even get animated in this music video:

What do you think of Jack and Jason’s Holiday duet? Let us know in the comments!