The Bee Gees, from left, Maurice, Robin and Barry Gibb sing together in their first U.S. performance in five years, at the MGM Grand in Las Vegas, Friday, Nov. 14, 1997. (Associated Press)

The Bee Gees, from left, Maurice, Robin and Barry Gibb sing together in their first U.S. performance in five years, at the MGM Grand in Las Vegas, Friday, Nov. 14, 1997. (Associated Press)