Kelli O'Hara appeared on the one-night-only return of The Rosie O'Donnell Show to benefit The Actors Fund, and recalled what brought her to New York City 20 years ago. "I didn't come to New York for the first time until I was 21 years old," the Tony-winning O'Hara said. "I'd never seen a Broadway show. I didn't even really see live shows"I saw movie musicals. I just knew I was different from everybody. An…