![Elton John and good friend Billie Jean King look like twins at Las Vegas AIDS event | Daily Mail Online Elton John and good friend Billie Jean King look like twins at Las Vegas AIDS event | Daily Mail Online](https://i.dailymail.co.uk/i/pix/2016/10/12/00/394C508900000578-3833507-image-m-18_1476227933753.jpg)
Elton John and good friend Billie Jean King look like twins at Las Vegas AIDS event | Daily Mail Online
![Elton John on Twitter: "#HappyBirthday to Billie Jean King, the tennis champ who inspired Elton's hit song, 'Philadelphia Freedom'. 🎂🎉 https://t.co/3vzK7dqTH2" / Twitter Elton John on Twitter: "#HappyBirthday to Billie Jean King, the tennis champ who inspired Elton's hit song, 'Philadelphia Freedom'. 🎂🎉 https://t.co/3vzK7dqTH2" / Twitter](https://pbs.twimg.com/media/DPPBrqkX0AArc8t.jpg)
Elton John on Twitter: "#HappyBirthday to Billie Jean King, the tennis champ who inspired Elton's hit song, 'Philadelphia Freedom'. 🎂🎉 https://t.co/3vzK7dqTH2" / Twitter
![Billie Jean King Shares Throwbacks From Elton John's Concert - Parade: Entertainment, Recipes, Health, Life, Holidays Billie Jean King Shares Throwbacks From Elton John's Concert - Parade: Entertainment, Recipes, Health, Life, Holidays](https://parade.com/.image/t_share/MTkzODQyMjc0ODY5MTkyMTMx/gettyimages-105681563-2.jpg)
Billie Jean King Shares Throwbacks From Elton John's Concert - Parade: Entertainment, Recipes, Health, Life, Holidays
Billie Jean King - My dear friend Elton John wore the Philadelphia Freedoms uniform well, don't you think? 🎾 📷: Terri O'Neil #ThrowbackThursday | Facebook
![Elton John and good friend Billie Jean King look like twins at Las Vegas AIDS event | Daily Mail Online Elton John and good friend Billie Jean King look like twins at Las Vegas AIDS event | Daily Mail Online](https://i.dailymail.co.uk/i/pix/2016/10/12/00/394E321E00000578-3833507-image-m-4_1476227834044.jpg)
Elton John and good friend Billie Jean King look like twins at Las Vegas AIDS event | Daily Mail Online
![Billie Jean King on Twitter: "Four decades of friendship and we're not done yet! Happy birthday to my dear friend, Elton John! https://t.co/NTcB3KaWeQ" / Twitter Billie Jean King on Twitter: "Four decades of friendship and we're not done yet! Happy birthday to my dear friend, Elton John! https://t.co/NTcB3KaWeQ" / Twitter](https://pbs.twimg.com/media/D2gXwe6XgAAKwg0.jpg)
Billie Jean King on Twitter: "Four decades of friendship and we're not done yet! Happy birthday to my dear friend, Elton John! https://t.co/NTcB3KaWeQ" / Twitter
![July 6, 1974 - London, England, U.K. - Singer ELTON JOHN out to support tennis star BILLIE JEAN KING while she competes at Wimbledon. (Credit Image: © KEYSTONE Pictures USA/ZUMAPRESS.com Stock Photo - Alamy July 6, 1974 - London, England, U.K. - Singer ELTON JOHN out to support tennis star BILLIE JEAN KING while she competes at Wimbledon. (Credit Image: © KEYSTONE Pictures USA/ZUMAPRESS.com Stock Photo - Alamy](https://c8.alamy.com/comp/DMW726/july-6-1974-london-england-uk-singer-elton-john-out-to-support-tennis-DMW726.jpg)
July 6, 1974 - London, England, U.K. - Singer ELTON JOHN out to support tennis star BILLIE JEAN KING while she competes at Wimbledon. (Credit Image: © KEYSTONE Pictures USA/ZUMAPRESS.com Stock Photo - Alamy
![Elton John and Billie Jean King: 40 years of friendship, philanthropy, activism – Amanpour - CNN.com Blogs Elton John and Billie Jean King: 40 years of friendship, philanthropy, activism – Amanpour - CNN.com Blogs](http://i2.cdn.turner.com/cnn/dam/assets/131119164112-amanpour-billie-jean-king-elton-john-story-top.jpeg)