From July 2006 – January 2007, Birdsong performed in the Martin Short: Fame Becomes Me comedy musical, alongside funnyman Martin Short, Marc Shaiman, MADtv's Nicole Parker, Brooks Ashmanskas, and Capathia Jenkins. The show is now closed, but the cast album is available through Ghostlight Records (www.sh-k-boom.com). Featuring original music by the award winning composer/lyricist team of Marc Shaiman & Scott Wittman, the cast album features Birdsong singing on tracks like "Step Brother to Jesus" and "The Salesman That Got Away". On January 29, 2008, Birdsong joined the Broadway cast of another Shaiman & Wittman musical, Hairspray. She played the role of Velma Von Tussle, the bigoted, pushy stage mother and television producer. Birdsong departed the production on April 6 of the same year.