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Michelle Dockery, Wimbledon

Dave M. Benett /Getty Images

Today marks day one of the 2013 Wimbledon Tennis Championships and stars are stepping out in London to celebrate the event.

At the 2013 WTA Pre-Wimbledon Party—held in Kensington at the Roof Gardens—tennis pros Serena Williams and Maria Sharapova (who recently made headlines over a tiff) along with off-court stars, including Jesse Metcalfe and girlfriend Cara Santana, took to the red carpet to launch the Wimbledon festivities.

Downton Abbey actresses (and onscreen sisters) Michelle Dockery and Laura Carmichael hung out at the Evian Live Young VIP suite, where legendary supermodels Naomi Campbell and Grace Jones were also spotted.

Meanwhile, soon-to-be-aunt Pippa Middleton (alongside brother James) caught a match on Monday, looking happy and relaxed as she watched Roger Federer and Victor Hanescu play. 

Click to our gallery to see more stars out at Wimbledon!