Answer
8 refers to the musical "8" in which Cheyenne Jackson starred in 2011. "8" is a musical that premiered on Broadway in 2011 and is based on the 1963 film "8½" by Federico Fellini. The musical follows the story of Guido Contini, a famous Italian film director, as he struggles with creative block and personal turmoil. Cheyenne Jackson played the role of Guido Contini in the Broadway production.