Allman Brothers and Santana at Jones Beach

This blues rock band, which sprouted from Jacksonville, Fla., with brothers Gregg (vocals-organ) and Duane Allman (guitar) in 1969, has had more members than a major-league baseball team. The group's popularity grew through its stage performances, which were captured on the legendary 1971 live album, "At Fillmore East."

Motorcycle accidents took the lives of Duane and bassist Berry Oakley, but the band soldiered on with new members. Every March it sets up camp at Manhattan's Beacon Theatre for a string of shows.

After building a reputation in the San Francisco Bay Area at the Fillmore, Santana made his breakthrough performance at Woodstock in 1969, which landed him a record deal. He went on to become a guitar icon fusing Latin rock with jazz, blues, salsa and African rhythms. His universal appeal has garnered him 10 Grammys, helping sell more than 100 million albums worldwide.