NBC is finally confirming what I've been telling you for months: Martha Stewart is joining The Apprentice next season. Here's the catch: She won't be replacing Donald Trump. Instead, she'll be starring in a spin-off, The Apprentice: Martha Stewart. Details are sketchy, but it appears NBC will rotate both editions as opposed to airing them simultaneously. "We thought this was a natural expansion of the franchise," says Trump, who will serve as a producer on the Martha offshoot. "She's an amazing woman, and I think she will do an amazing job." Casting for both versions will begin Friday in New York, Detroit and Houston.