Which Yo Gabba Gabba! guest left the most lasting impression?

Unforgettable Guest Appearances
Yo Gabba Gabba! (2007)
Children's Entertainment
TV
Unforgettable Guest Appearances poll options
Unforgettable Guest Appearances
Yo Gabba Gabba! (2007)
Children's Entertainment
- Jack Black
- Elijah Wood
- Mos Def
- Sarah Silverman