Mimi was very Mimi last night for her Nightline interview with "good friend" Barbara Walters. She used the word "festive" twice, hung out in the mermaid room of her Manhattan penthouse (which has been converted into a playroom for dem babies), and managed to get in a nice little dig at reported rival Nicki Minaj, even though she claims that their feud is behind them. Babs read Mariah lyrics from Minaj's new song, which is about working on American Idol, and asked "Are you the 'bitch' she's singing about?"

Mariah responded, "Don't know. I didn't know she sang. I thought she rapped. Or whatever."