Rosie O'Donnell stopped by The Late Late Show on Wednesday and gave host James Corden some advice on how to host the upcoming Tony Awards. Rosie, who cohosted the big event with Nathan Lane in 2000, told James that he should definitely practice announcing the winners. "You need to practice saying, 'And the Tony goes to Hamilton,' because it is by far the best thing I have ever seen in my entire life," Rosie said. "I've seen it 12 times. If I could go once a week, I would. It's like going to church for me." James admitted he also loves the show, and the two then proceeded to rap part of the song "Satisfied." Watch the video above to see their amazing performance, and then check out James's recent Carpool Karaoke session with Chris Martin.