CBS has announced "My Grammy Moment," an opportunity for unsigned recording artists to audition to perform with Justin Timberlake at the 49th-annual Grammy Awards, airing Feb. 11. Details and voting procedures can be found at the My Grammy Moment website.... CBS will launch in January CBS Records, a digital label that will sign artists and aim to promote them via iTunes, TV-show placements and the network's broadband channel.... Ahmet Ertegun, the founder of Atlantic Records (springboard for the likes of Ray Charles, Aretha Franklin and the Rolling Stones), died on Thursday, at age 83.