Celebrity News November 26, 2015 How Julia Roberts, Mariah Carey and Others Are Spending Thanksgiving “Extra” recently sat down with big stars to chat about their Thanksgiving plans! America's sweetheart Julia Roberts, Mariah Carey and Christina Aguilera were just a few of the celebs to reveal their favorite dishes and what they are cooking on the special holiday. Mariah revealed, “I'm great at mashed potatoes. I can do the turkey, too. I just learned the turkey.” Watch! #CelebrityNews #ChristinaAguilera #JuliaRoberts #MariahCarey #TrendingStories More Blake Shelton Dishes on Thanksgiving Plans Gwen Stefani and family spent Thanksgiving Day at her parents' house in Los Angeles.