Bruce Jenner Won't Be Diane Sawyer's First Unforgettable Interview---Here Are 8 More

Known as one of the world's top news correspondents, Diane Sawyer has delivered groundbreaking coverage and a multitude of exclusives throughout her career. She's been a part of the ABC News team since 1989, where she's interviewed some of the most influential figures in the world. Tonight, Sawyer will deliver another highly-anticipated one-on-one when she sits down with Olympic Champion and reality TV star Bruce Jenner on ABC at 9 p.m. EST. In anticipation of the renowned journalist's latest conversation, we're taking a look back at some of her most unforgettable stories.