Trinity School in Croydon called in the big names to host a gala dinner in an effort to raise funds to send the senior side on a tour of Australia and Hong Kong.
BBC Sports Presenter, John Inverdale, hosted the evening on Saturday with guests of honour, former Engladn prop David Flatman and Simon Amor, the England sevens head coach.
Around 40 Trinity School rugby players aged 16-18 will be taking part in a 20-day rugby tour to Hong Kong and Australia in July.
After three days training in Hong Kong, the boys will fly to Australia to play matches against schools in Melbourne, Sydney and Cairn, where they will be hosted by their opponent's families.
Flatman, now communications director at Bath Rugby, said: "Playing rugby helps to build character as well as fitness. It is among the best team building activities and fosters a set of core values: teamwork, respect, enjoyment, discipline and sportsmanship.
"These along with self-worth and a sense of belonging, reap lifetime benefits for those who play so I am delighted to support Trinity School's summer rugby tour."
Aaron Liffchak, director of rugby at Trinity, said: "Being part of an international tour brings massive benefits to the boys.
"Competitive play helps reduce psychological, sociological and cultural barriers and develops self-reliance and confidence.
"Playing against different styles enhances individual skill levels and meeting opponents and their families often results in lifelong friendships. A tour of this kind will be remembered and talked about forever."