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Serena Williams

After winning Wimbledon for the fifth time, Serena Williams strutted her stuff at the Champions Ball in London on Sunday evening. The tennis ace showed off her bulging biceps and sexy curves in this mustard-colored Burberry frock. On her feet ... her favorite pair of spiked Christian Louboutin pumps. (7/8/2012)

2 Hot 2 Handle

This week's best-dressed celebs include Jennifer Hudson, Hayden Panettiere, and Posh Spice!  --  By Matt Whitfield, Yahoo! Staff