Sir Elton John falling off his seat at London's Royal Albert Hall

(YouTube)

(YouTube)

(YouTube)

(YouTube)

Sir Elton John sits with Heather Watson and Martina Hingis during the Mylan WTT Smash Hits on day five of the Statoil Masters Tennis at the Royal Albert Hall. (Getty Images)

Billy Jean King, Elton John and Sibine Lisicki (Getty Images)

John McEnroe, Martina Hingis, Billy Jean King, Elton John, Sibine Lisicki, Heather Watson and Jamie Murray. (Getty Images)

Sir Elton John talks to Tim Henman and Jamie Murray (Getty Images)

Andy Roddick takes a selfie of himself with (from L-R) Tim Henman,Kim Clijsters, Billie Jean King, Sabine Lisicki, Jamie Murray, Martina Hingis, Sir Elton John, Heather Watson and John McEnroe. (Getty Images)

Sir Elton John, Andy Roddick and John McEnroe (Getty Images)

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