The folks at JibJab continue to pump out some of the funniest customized videos on the web. Last month they forged a deal with master parody maker Weird Al to bring custom versions of the song writer's music video to the site. And today they're announcing a partnership with Soul Train, the long-running music TV program that featured countless artists from genres including R&B, soul, and hip hop over its 35 years on the air. You'll now be able to stick yourself (or your friends) in the 70's-era dance video below and watch the hilarious results.JibJab has been making similar videos for quite a while, and has built up an impressive repertoire of licensed content including videos from Snoop Dogg and High School Musical. TechCrunch50 Conference 2009: September 14-15, 2009, San Francisco