The charity mega-concert was an unforgettable day for Philadelphia. The author was there, and shares how it came to be.

Including works by the likes of The Doors, Led Zeppelin, The Kinks and more, was 1971 the greatest year in music history? Read more about it here.

Are you a fan of rock music? If so, you're in luck: in this gallery, we take a road trip down the rock 'n' roll history ...

Below are the 25 most-consumed one-hit wonders of the 21st century, from mass viral crazes like Baauer's "Harlem Shake" ...