It's been 50 years since a single-engine plane crashed into a snow-covered Iowa field, instantly killing three men whose names would become enshrined in the history of rock 'n' roll.

The passing decades haven't diminished fascination with that night on Feb. 2, 1959, when 22-year-old Buddy Holly, 28-year-old J.P. "The Big Bopper" Richardson and 17-year-old Ritchie Valens performed in Clear Lake and then boarded the plane for a planned 300-mile flight that lasted only minutes.

Starting Wednesday, thousands of people are expected to gather in the small northern Iowa town where the rock pioneers gave their last performance. They'll come to the Surf Ballroom for symposiums with the three musicians' relatives, sold-out concerts and a ceremony as the Rock and Roll Hall of Fame designates the building as its ninth national landmark.

"They say these things come in threes. Well, all three happened at the same time."

"the day the music died."