Stewie appeared in "Bones", eventually revealed to be the result of FBI Special Agent Seeley Booth's (David Boreanaz) brain tumor. Seth MacFarlane wrote all of Stewie's dialog for the episode. The character appeared in a Coca-Cola commercial during Super Bowl XLII, he and Brian appeared in a commercial for Wheat Thins, he presented a musical number at the 59th Primetime Emmy Awards with Brian, and he appeared at the 62nd Primetime Emmy Awards. He appeared on the December 21, 2009 episode of "Late Show with David Letterman" to present "Top Ten Things You Don't Want To Hear From Your Child."