Singer-designers: The best of the best

Holy multi-tasking, Batman! These double (and triple, even quadruple) threats took some focus away from their musical careers to try their hand at fashion design. From Posh to J.Lo, these talented musicians are trading the stage for the runway.

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The Thread Videos Photo By Sara Kauss Photography, LLC / Getty Images/Sara Kauss Photography, LLC / Getty Images Thu, Sep 13, 2012 4:00 PM EDT

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Avril Lavigne's clothing line has now shown three times at New York Fashion Week--no small feat, even for a Grammy nominee. The line celebrates the Canadian singer's girly-meets-punk aesthetic and was inspired by musicians like Joan Jett and David Bowie as well as the crazy styles of the Harajuku girls of Tokyo.
Avril Lavigne's clothing line has now shown three times at New York Fashion Week--no small feat, even for a Grammy nominee. The line celebrates the Canadian singer's girly-meets-punk aesthetic and was inspired by musicians like Joan Jett and David Bowie as well as the crazy styles of the Harajuku girls of Tokyo.