Not only is MACY GRAY an incredible musician, she was also Ellen's very first musical guest -- 8 years ago! Her unique sound and extraordinary talent is unmatched, and today she's here to perform one of her new hit songs.Ellen's been practicing her fist-pumping... SNOOKI is stopping by! The "Jersey Shore" starlet has turned into a phenomenon and even inspired Ellen's Halloween costume. She'll have the latest on the brand new season of her hit reality show.Thirteen-year-old country singer SAVANNAH KEYES is making her television debut today. She's in good company -- Lady Antebellum also made their debut performance with Ellen!