Peter Allen (born Peter Richard Woolnough; 10 February 1944 – 18 June 1992) was an Australian singer-songwriter, musician, and entertainer, known for his flamboyant stage persona, boundless energy, and lavish costumes. His songs were made popular by many recording artists, including Elkie Brooks, Melissa Manchester and Olivia Newton-John, including Newton-John's first chart topping hit "I Honestly Love You", and the chart topping and Academy Award-winning "Arthur's Theme (Best That You Can Do)" by Christopher Cross. In addition to recording many albums, he enjoyed a cabaret and concert career, including appearances at the Radio City Music Hall riding a camel. His patriotic song "I Still Call Australia Home", has been used extensively in advertising campaigns, and was added to the National Film and Sound Archive's Sounds of Australia registry in 2013.Allen was the first husband of Liza Minnelli. They met in October 1964, were engaged on 26 November 1964, married on 3 March 1967, formally separated on 9 April 1970, and divorced on 24 July 1974. He had a long-term partner, model Gregory Connell (1949–1984). They met in 1973 and were together from 1974 until Connell's death in 1984. Allen and Connell died from AIDS-related cancer eight years apart, with Allen becoming one of the first well-known Australians to die from AIDS. Allen remained ambiguous about his sexuality in that he did not pretend to be straight after divorcing Minnelli, but never publicly came out as gay either. In a 1991 interview with the gay newspaper New York Native, he explained, "I was 'out' on stage years before anyone else. But I think outing is limiting. I don't feel like I should be labeled." Despite Allen's outgoing persona, he was an intensely private man who shared little about his personal life even with those close to him. Few people knew he had HIV/AIDS, partly in fear of alienating his conservative, heterosexual fans and thinking audiences would not want to see a performer they knew was sick. In 1998, a musical about his life, The Boy from Oz, debuted in Australia. It ran on Broadway and earned Hugh Jackman a Tony Award for Best Actor in a Musical.

Source: Wikipedia (https://en.wikipedia.org/wiki/Peter_Allen_(musician))