JohnTravolta

Getty Images Keith Urban was joined for a special duet by actor/singer John Travolta at the G'day USA party in Los Angeles last week, where the pair performed the Beatles' classic "Yesterday." (Watch a fan's footage of the duet below.)

Chestnuts roasting, Blake Shelton toasting! There are plenty of festive new Christmas albums out this year, including holiday collections from a "Voice" star, an "American Idol" winner, iconic actors and Country Music Hall of Famers. Most are filled with new renditions of old favorites, but some also include holiday originals that just may be classics someday...

If you ever wondered what happened to Rydell High's favorite power couple, last seen in "Grease" nearly 35 years ago, Sandy and Danny (a/k/a Olivia Newton-John and John Travolta) may have aged but they've obviously kept singing and dancing through the years...

For the first time in almost 30 years, "Grease" stars John Travolta and Olivia Newton-John are back together for a very special musical project. This Christmas is an album of duets featuring the two global superstars, along with some very special guests, including Barbra Streisand, Tony Bennett and James Taylor...

Merle Haggard isn't one to keep his opinions to himself. The outspoken 73-year old is still making music, winning awards and defending causes in which he strongly believes -- including the legalization of marijuana. "There are some people in this world that have no idea what the real deal is," he told the Bakersfield Californian newspaper, when asked about buddy Willie Nelson's recent dr