Legendary Duet

The Colosseum's latest show packs in the 17 costume changes, as well as audio and visual effects. Cher says fans can expect to see personal photos and film clips she's never shared before. "We found pictures of Sonny and I walking along the Seine," she says. "We've got this unbelievable black-and-white section. The whole thing is pop art."

Cher has performed hundreds of concerts over the years, but she says she still gets terrified moments before taking the stage. "Once I'm out, I'm okay," she says. "But backstage, I'm just going, 'Oh, I can't do this. I can't do this. I can't do this.'"

To snap her out of her stage fright, Cher says the show's director once told her, "If God hadn't wanted you to do this, he wouldn't have looked down on you when you were in your cradle and [said], 'Sequins!'"