Zachary Levi of Chuck fame was part of the Emmytones for the 2011 Emmy Awards.
Also sharing in the glory of singing on stage was Cobie Smulders (How I Met Your Mother) Joel McHale (Community), Kate Flannery (The Office), Wilmer Valderrama (Royal Pains) and Taraji P. Henson (Taken From Me: The Tiffany Rubin Story.)
There is a youtube link for you to watch segments below.
Watch at Chuck & Sarah media: here
Picture credit: Zachary Levi Fan
2011 Emmys – The HP Touchsmart Gift Lounge Backstage