Yes, Madonna (born in 1958) has been a longtime supporter of the LGBTQ community and is considered to be a major gay icon. In high school she found a mentor in her dance teacher, Christopher Flynn, a gay man whom she says “was the first person that believed in me, that made me feel special as a dancer, as an artist and as a human being.” Flynn also took Madonna to her first gay nightclub in Detroit; the experience made her realize that there was a like-minded community of people who felt “it was OK to be different.” Flynn died of AIDS-related complications in 1990.
By that time Madonna had moved to New York City and become a pop superstar. Early in her career she befriended many other gay artists, such as Keith Haring and Martin Burgoyne. They also died of complications from AIDS. Madonna was one of the first celebrities to raise funds for AIDS research and advocate for AIDS awareness and acceptance of the LGBTQ community. She has continued to be vocal in her support of gay rights.
In addition, Madonna’s 1991 documentary Truth or Dare, which follows the singer’s experiences on her Blonde Ambition concert tour, features several scenes that focus on her gay back-up dancers, including their attendance at a Pride parade. At the time of its release, the film was considered groundbreaking for its positive representation of the LGBTQ community.