Elton John of Wales' eating disorder. John replied, "Yes, I did. We were both bulimic." A longtime tennis enthusiast, he wrote the song "Philadelphia Freedom" in tribute to friend Billie Jean King's World Team Tennis team, the Philadelphia Freedoms. King was a player-coach for the team at the time. John and King remain friends and co-host an annual pro-am event to benefit AIDS charities, most notably Elton John's own Elton John AIDS Foundation, for which King is a chairwoman. John, who maintains a part-time residence in Atlanta, Georgia, became a fan of the Atlanta Braves baseball team when he moved there in
Billie Jean King of America, which opened in 2008. The museum is the home of the Billie Jean King International Women's Sports Center, a comprehensive women's sports hall of fame and exhibit. King and her then-husband Larry co-founded World Team Tennis in 1974. The couple used their savings to put on a team tennis event at the Oakland Coliseum. King remained involved with World Team Tennis for decades, eventually sharing ownership with her ex-husband, her life partner Ilana Kloss and USTA. In 1999, King was elected to serve on the Board of Directors of Philip Morris Incorporated, garnering some criticism from anti-tobacco groups.