** HOLD FOR RELEASE UNTIL 12:01 EDT WEDNESDAY AUG. 12, 2009 ** In this Feb. 24, 1988, file photo Michael Jackson leans, points, sings, dances and struts during the opening performance of his 13-city U.S. tour in Kansas City. A new poll by the Pew Research Center examining the generation gap four decades after Woodstock and the rebel yell of 1960s youth finds that rock and roll rules across generations and the Beatles are high on the list of every age group's favorite bands. Michael Jackson was the No. 1 pick in the under 30 group, the Eagles topped out in the 30-49 age group, and the Beatles won out in the 50-64 age group. And for those 65 and older, Frank Sinatra can't be beat. (AP Photo/Cliff Schiappa, File)