Plot: Host Katie Cook is back from her visit with supertstar Shania Twain in beautiful Switzerland, and she'll give a sneak peek at what the star's been up to and get the scoop on her new duet ""Party for Two"" with country singer Billy Currington and Sugar Ray frontman Mark McGrath. Bluegrass legend Earl Scruggs was joined by Kris Kristofferson and other celebrity musicians as he continues his series at the Country Music Hall of Fame