Demi Kutcher ? Not so fast. Ashton Kutcher says he can't confirm a new round of Internet reports that claim his wife Demi Moore is taking his name to celebrate their fourth wedding anniversary in September. See Ashton Kutcher and Demi Moore's most romantic moments "She hasn't told me, so you might be revealing a secret," he told Usmagazine.com Monday at the Los Angeles premiere of his new comedy Spread . "I think it would be fantastic, but at the same time, it's a name, you know? ...