Philadelphia Freedom (song) honour Billie Jean King, and so asked Taupin to write a song called "Philadelphia Freedom" as a homage to her tennis team, the Philadelphia Freedoms. In "His Song: The Musical History of Elton John", Elizabeth Rosenthal recounts that Taupin said, "I can't write a song about tennis," and did not. Taupin maintains that the lyrics bear no relation to tennis, Philly Soul, or even flag-waving patriotism. Nonetheless, the lyrics have been interpreted as patriotic and uplifting, and even though it was released in 1975, the song's sentiment, intentionally or not, meshed perfectly with an American music audience gearing up for
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.