Simon Cowell

6 of 17
Simon Cowell
Former American Idol judge Simon Cowell knows a thing or two about giving artists their big breaks, but he says nobody has done it like Oprah has. "Being on The Oprah Winfrey Show means automatic credibility," he says to Oprah. "More than record sales, you really connect viewers to the music in a way that nobody else can. And beyond the music, I believe your biggest talent is bringing out the best in people, even for me."

Before he introduces the next group of performers, however, Simon comes clean. "Oprah, I know that you hand-picked this next group of familiar faces," he says. "I'm going to have to tell you the truth: I don't think this is going to be the most talented group of singers you're going to see tonight, and I'm not sure this next act will be topping the charts next week."