Being in the bay area we still have lots of the old guard playing good music (significantly older than Green Day).
I recently went to Dan Hicks' 70th birthday bash, with guests like Ramblin' Jack Elliott, Maria Muldaur, Rickie Lee Jones, Jim Kweskin, Tuck & Patti, David Grisman, Van Dyke Parks, John Hammond, Roy Rogers, and more.
Then there's old stalwarts in the area like Boz Scaggs, Phil Lesh, Bob Weir, Mickey Hart, Carlos Santana, Gregg Rolie, Jorma Kaukonen, Jack Casady, and many more...