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Steven Tyler

Good Genes or Good Docs?

3/4/2012 3:30 AM PST BY Johnny Lopez

0302_steven_tyler_genesSteven Tyler has been rock and rollin' for over 40 years.

Here's the 28-year-old Aerosmith lead singer back in 1976 (left) -- and 36 years later, the 63-year-old in L.A. on Thursday (right).

American idol, indeed.

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