Bruce Jenner's highly anticipated interview with Diane Sawyer airs tomorrow night on ABC, and a new promo shows the former Olympic champion talking openly about his reported transition into a woman [1]. In the short clip, Bruce tells Diane, "It's going to be an emotional roller coaster, but somehow I'm gonna get through it." In other promos for the two-hour special, he revealed the love he has for his family [2] and said he does not want to hurt them as he goes through this process. Watch the latest clip above, then check out his journey through the years [3].