It\’s a typical late-\’60s student shindig — most of the audience is tripping on acid — but it\’s hardly an ordinary band. Behind the drums is Chevy Chase, familiar around campus as a gifted musician and good-natured goofball who\’s been known to drop his pants after losing late-night games of \’\’dare\’\’ poker. Just in front of him is a long-haired muso named Walter Becker, one of the school\’s most accomplished guitarists. And the shy singer behind the electric piano? That\’s Don Fagen, decked out in a leather jacket with feathers attached to it (hence the band\’s name).