Olivia Newton-John: Grease star, four-time Grammy winner, environmental activist, and… accidental gay beard?Redditor @ladiloera revealed in a post that that Newton-John’s visage on a Xanadu poster fooled his mom nearly four decades ago.Related: Olivia Newton-John is still the one we want“I was outed to my parents in 1981,” @ladiloera wrote. “My mother screamed at me, ‘You can’t be gay, you have an Olivia Newton-John poster.” Mother thought Olivia Newton-John stopped the gay from gay Xanadu, of course, is the 1980 musical film about a struggling painter falling in love with a roller-skating Olympian Muse, played by Newton-John, who inspires him to open a roller disco with a former jazz musician, played by Gene Kelly in his final film.