The Jefferson State Choral Coalition, under the direction of Kirby Shaw, will present "Rock My World" at 3 p.m. and 7:30 p.m. Saturday, May 28, in the Music Recital Hall on the Southern Oregon University campus, 1250 Siskiyou Blvd., Ashland. The concerts will include feel-good songs such as Stevie Wonder's "Higher Ground," Al Jarreau's "Mornin' " and Van Halen's "Jump." The men's and women's quartets will perform hits by Duke Ellington, Carole King and Elvis Presley. The choir also will debut a new rock composition by Markita and Kirby Shaw titled "We've Got the Power." Tickets are $5, free for students and children 11 and younger, and are available by calling 541-552-6101.