Jack Black and Yo Gabba Gabba fans – your worlds are about to collide. Look for Jack Black to appear on the trippy kids’ show Yo Gabba Gabba April 3 on Nickelodeon. Here’s a picture of Jack Black rocking out with red nubbly Muno.

Jack Black said of the Yo Gabba Gabba guest spot: ”I’m hitting two birds with one stoner, as it were. Unfortunately, I’m looking pretty sweaty and greasy. Hopefully, it won’t be too scary for the kids. But you know, Charlize Theron wasn’t looking her best in Monster and it won her the Oscar. This episode is my Monster, basically.”