CMT has picked up one of its highest-rated series, The Singing Bee, for a third season. The karaoke singing competition, from Juma Entertainment and the Gurin Co., is hosted by Melissa Peterman, who also toplines the network’s first scripted sitcom, Working Class, slated to premiere on Jan. 28. Singing Bee creator Gurin, who executive produces the series with Bob Horowitz, has signed with CAA. He was most recently at Octagon with John Ferriter who previously repped him at WMA. Gurin is also creator/executive producer of CMT’s Your Chance to Dance and has served as an executive producer on the Miss Universe and Miss USA shows on NBC for the past 8 years. His business manager is Alan Goldman.