Here's a look at 'Today in Rock History' featuring: Mike D from The Beastie Boys is 54. Joe Walsh is 72. Joe Biden is 77. Robert F. Kennedy was born on this day in 1925 and Duane Allman was born in 1946. Today in 1973, a fan got to play drums with The Who after Keith Moon, who was completely loaded, collapsed during a San Francisco concert. Pete Townshend asked for a volunteer drummer from the audience, and 19-year-old Scott Halpin's dream came true. He took a shot of brandy, then played on three songs, including "My Generation".