Live with Faith Hill & David Foster

While Gayle admits she's not the best singer in the world, David says he knows who is. Of all the talented performers David has seen over the years, he says Andrea Bocelli is one of the greatest. "He is my favorite singer on the planet."

Andrea takes the stage to sing "The Prayer" and "Because," a song from his new album, Incanto, featuring some of the greatest love songs in history.

Watch as Andrea performs "The Prayer" live.