When Kid Rock celebrates his 40th birthday with a mega-concert Saturday at Ford Field, he won't just be staring down middle age. He'll be facing the same fundamental test confronted by every rocker who lasted long enough to see the gray hair creeping in:
How should I evolve to endure?
Rock 'n' roll has long glorified youth: Hope I die before I get old. Burn out, not fade away. Trust no one over 30. Old age is rock's age-old conundrum. To this day, "young Elvis vs. old Elvis" remains a staple of the rock 'n' roll debate.
Irreverence and bravado are natural fits for a twentysomething rocker. But sticking it out for the long haul can present tough choices: Do I settle for being an oldies act? Transform my music? Risk becoming a cari...