In what may be one of his all-time career highlights, Jon Stewart is set to appear on sister network Noggin's song n' dance extravaganza Jack's Big Music Show. According to Maureen Ryan's Watcher Blog (which also has a glowing preview of The Naked Trucker & T-Bones Show):

"Stewart 'is a huge fan of the show,' says Adam Rudman of Highland Park’s Spiffy Pictures, which created 'Jack’s.' 'He watches the show with his kids every day.' Indeed, Stewart flew to Chicago a few months ago and spent an entire day at Spiffy’s studio filming his 'Groundhog Day' episode.

Look for Jon to jam with singing sock puppets and set your DVRs for Friday, February 2 at noon. Rock!