Tunes that bring on the burn

Fri, 02 Mar 2007 06:59 PM EST

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LAS VEGAS - DECEMBER 04:  Singer Gwen Stefani performs onstage at the 2006 Billboard Music Awards at the MGM Grand Garden Arena December 4, 2006 in Las Vegas, Nevada.  (Photo by Kevin Winter/Getty Images) *** Local Caption *** Gwen StefaniIt can be hard enough just getting motivated to start your workout, but then there’s the problem of staying interested so you don’t walk away from the treadmill mid routine. Readers share their favorite workout tunes.


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