Crop tops, bangs and boy bands are as popular in 2013 as they were in 1993, proving that the '90s is the one decade that never really left.

Whether it's catching reruns of Beverly Hills, 90210, buzzing about a Jurassic Park movie or eagerly awaiting an 'N Sync reunion, everything old is new again.

This slideshow pays homage to the Lollapalooza Festival, which started in 1991 and is still going strong.

Click here to view the slideshow.

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