l is their cover of T. Rex???s ???20th Century Boy???, a bonus track on the deluxe edition of Let It Be, which appears to have been a structural template for ???Gary???s Got a Boner???.) On Sorry Ma, Westerberg actively severs the band from any sort of legacy in ???Shiftless When Idle??? (???I ain???t got no idols / I ain???t got much taste???), and pulls the rock-fantasy exploits of Johnny Thunde