From the official Star Wars Celebration website:
Best known for: Robot Chicken, Star Wars Pop Culture Icons and Stoopid Monkey
Robot Chicken's Seth Green and Matthew Senreich are heading to Star Wars Celebration VI
The twisted masterminds behind Robot Chicken – Seth Green and Matthew Senreich – will be attending Star Wars Celebration VI this August 23-26, 2012, in Orlando, Florida as special guests. Star Wars fans from the very beginning, Seth and Matt have been honored guests of past Celebrations since their hilarious Robot Chicken show moved beyond just the occasional Star Wars sketch to full-fledged specials showcasing the hilarious side of a galaxy far, far away. Three Robot Chicken: Star Wars specials later, they're still mining the saga for comedy gold, including working as consultants for the team developing a new animated Star Wars series at Lucasfilm Animation.