The singer muscles her way through London after a visit to the gym. Plus: Reese & Jake, Jennifer Lopez, Gwen Stefani and more
Published: Monday Mar 31, 2008 | 04:00 PM EDT
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Avril Lavigne mixes naughty and nice Thursday, adding a skull pendant to her lacy, girlie dress at a Toronto afterparty for husband Deryck Whibley's band Sum 41.
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