Yo Gabba Gabba is one of the hippest TV shows on the planet right now. But its not hip in the douchey way. It's cool with people that are really cool too. And now those cool people are part of a new line of Gabba inspired t-shirts.

Jack Black, Wayne Coyne from the Flaming Lips, Devo‘s Mark Mothersbaugh (who also does a guest spot as an artist on the show regularly), actor Jon Heder and rapper Biz Markie have all teamed with Volcom clothing designer to create shirt designs for the new line. And Dave Grohl had his daughter Violet do the main design you see above, although I'm pretty sure it was Dave who added the emo devil-horned character in the background.

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