Steve Martin and the Steep Canyon Rangers are among the initial performers announced for the International Bluegrass Music Association Awards show set for Sept. 29 at Nashville's Ryman Auditorium. Other performers announced include Balsam Range, the Boxcars, Dailey & Vincent, the Grascals, the Gibson Brothers, Russell Moore & IIIrd Tyme Out, Sierra Hull & Highway 111 and the show's host, Sam Bush. The awards show is the highlight of the trade organization's World of Bluegrass Week taking place Sept. 26-Oct. 2 in Nashville. The activities also include the IBMA Business Conference and Bluegrass Fan Fest. The awards show will be broadcast live on Sirius XM Satellite Radio and syndicated to more than 300 U.S. markets and 14 foreign networks. In related news, Sammy Shelor, bandleader and banjo player with the Lonesome River Band, has been selected as the second winner of the Steve Martin Prize for Excellence in Banjo and Bluegrass. The Lonesome River Band will perform with Martin on the Late Show With David Letterman on Nov. 3.