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The theory of the 13-year rock vs. pop cycle: Alan Cross

By Alan Cross Global News

Posted March 18, 2018 10:00 am EST

Updated March 19, 2018 4:36 am EST

13 min read

This article is more than 6 years old and some information may not be up to date.

Britney Spears onstage (L) and Nickelback performing in 2002. Getty Images