DANCING WITH THE STARS: ALL-STARS – SHAWN JOHNSON & DEREK HOUGH – “Dancing with the Stars: All-Stars” marks the first time prior contestants will return for another chance at winning the coveted mirror ball trophy for a very special All-Star season. SHAWN JOHNSON joins three-time champ DEREK HOUGH, who returns for his 10th season. The show premieres MONDAY, SEPTEMBER 24 (8:00-10:00 p.m., ET), followed by the premiere of “Dancing with the Stars the Results Show” on TUESDAY, SEPTEMBER 25 (8:00-10:00 p.m., ET) on the ABC Television Network. (ABC/CRAIG SJODIN)