Jimmy Wayne, Kelley Lovelace, Ashley Gorley and Jonathan Singleton will perform at an in-the-round showcase during the Country Radio Seminar, an annual event aimed at country radio programmers. The March 4 session is sponsored by ASCAP, the performing rights organization. Wayne's writing credits include his first two hits, "Stay Gone" and "I Love You This Much." Lovelace's songwriting catalog includes Brad Paisley's "Ticks," "He Didn't Have to Be," "The World" and "Online." Gorley's songs include Trace Adkins' "You're Gonna Miss This," as well as Carrie Underwood's "Don't Forget to Remember Me" and "All-American Girl" and the Brad Paisley-Keith Urban duet, "Start a Band." Singleton's writing credits include Gary Allan's "Watching Airplanes" and Billy Currington's "Don't."