Made in America: Run-DMC

Darryl "D.M.C." McDaniels, left, and Joseph "Run" Simmons, right of Run-DMC perform on the Rocky stage during the Made in America festival in Philadelphia, Pa. on September 2, 2012. ( DAVID MAIALETTI / staff photographer )

Reunited rappers Run-DMC, whose two principals hadn't performed together in 13 years - their DJ Jam Master Jay die in 2002 - were the biggest crowd pleasers of the day. Rappers Darryl McDaniels and Joseph Simmons set off the crowd with 1980s rock power-chord boosted bangers like "it's Tricky," "My Adidas" and of course, their trailblazing Aerosmith collaboration "Walk This Way." (Joe Perry and Steven Tyler were only, heard, and not seen, at Made In America, however.)

In a touching interlude, the group handed over the wheels of steel to Jam Master Jay's two sons Jason Mizell Jr. and TJ Mizell, both of whom grew up to be Deejays. For an added thrill, the big video screens showed Jay-Z and Beyonce moving through the crowd during the old school rappers' set.

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