Tune in to the premiere of ABC's Greatest Hits TONIGHT @ 9pm!! Nick & RJ with Katie Schaar and Jana Thompkins choreographed several numbers in upcoming episodes, and dancers appearing are Sophia Aguiar, Ava Bernstine, Taeko McCarroll, Tammy Fey, Dani Vitale, Kim Gingras, Brittany Perry-Russell, Maria Wada, Rumer Noel, Vincent Noiseux, Taylor James, Scott Myrick, Ade Obayomi, and Tre Holloway