Shana Twain returns to Las Vegas with residency, "Let's Go"; Kelly Clarkson's Las Vegas residency; Celine Dion (album, "Courage"); Justin Timberlake; Garth Brooks and Trisha Yearwood ("Garth: The Road I'm On"); Sarah Jessica Parker; Oprah Winfrey's favorite things, with Gayle King ("CBS This Morning");—anonymous