Stars out in force for Djokovic Foundation gala

Novak Djokovic and Jelena Ristic attend the Novak Djokovic Foundation London gala dinner at The Roundhouse on July 8, 2013 in London, England. (GETTY)

Richard Branson attends the Novak Djokovic Foundation London gala dinner at The Roundhouse on July 8, 2013 in London, England.  (GETTY)

Preeya Kalidas attends the Novak Djokovic Foundation London gala dinner at The Roundhouse on July 8, 2013 in London, England.  (GETTY)

Zoe Hardman attends the Novak Djokovic Foundation London gala dinner at The Roundhouse on July 8, 2013 in London, England. (GETTY)

Sarah Ferguson and Princess Eugenie attend the Novak Djokovic Foundation London gala dinner at The Roundhouse on July 8, 2013 in London, England. (GETTY)

Naomi Campbell attends the Novak Djokovic Foundation inaugural London gala dinner at The Roundhouse on July 8, 2013 in London, England.  The foundation supports vulnerable and disadvantaged children, especially in Djokovics native Serbia. (GETTY)

Gerard Butler attends the Novak Djokovic Foundation London gala dinner at The Roundhouse on July 8, 2013 in London, England. (GETTY)

Marion Bartoli attends the Novak Djokovic Foundation London gala dinner at The Roundhouse on July 8, 2013 in London, England. (GETTY)

Lily Becker and Boris Becker attend the Novak Djokovic Foundation London gala dinner at The Roundhouse on July 8, 2013 in London, England. (GETTY)

Kate Hudson attends the Novak Djokovic Foundation London gala dinner at The Roundhouse on July 8, 2013 in London, England. (GETTY)

Isabella Calthorpe and Sam Branson attend the Novak Djokovic Foundation inaugural London gala dinner at The Roundhouse on July 8, 2013 in London, England.  The foundation supports vulnerable and disadvantaged children, especially in Djokovics native Serbia. (GETTY)

Caroline Winberg, Naomi Campbell and Erin O'Connor attend the Novak Djokovic Foundation inaugural London gala dinner at The Roundhouse on July 8, 2013 in London, England.  The foundation supports vulnerable and disadvantaged children, especially in Djokovics native Serbia. (GETTY)