Billie Jean King, the famous tennis player, became a staunch advocate for LGBTQ+ rights after retiring from her successful career. Her activism drew national attention when she fought for equal pay and opportunities for female athletes, leading to the establishment of the Women's Sports Foundation. King’s public acknowledgment of her sexual orientation in 1981 further amplified her advocacy, positioning her as an icon for the LGBTQ+ community. She continues to use her platform to promote equality and champion civil rights, making a profound societal impact.