Les Gray, lead singer of ’70s British hit-makers Mud, died Saturday (Feb. 21) in Portugal of a heart attack. Gray, 57, had been suffering from throat cancer.

Les Gray, lead singer of ’70s British hit-makers Mud, died Saturday (Feb. 21) in Portugal of a heart attack. Gray, 57, had been suffering from throat cancer.

Mud, a rock-influenced pop act, was one of the U.K.’s top-selling singles acts in the ’70s. The band achieved 14 top-20 hits from 1973-76, including chart-toppers “Tiger Feet,” “Lonely This Christmas” and “Oh Boy.”