Why ever not? A photo taken of her used later for an album cover. No mystery there, surely
"The cover is a photograph by Peter Hujar of Warhol Superstar Candy Darling on her deathbed (aptly titled "Candy Darling on Her Deathbed").[5]" https://en.wikipedia.org/wiki/I_Am_a_Bird_Now
"1974 photo of Andy Warhol superstar Candy Darling on the cover of Antony and the Johnsons' second full length, I Am a Bird Now, is the perfect complement to the ghostly hymnals that flit and sigh behind its black and white shadows. A melancholy but arrestingly beautiful image, it depicts Darling on her deathbed; bright flowers float behind her upturned arm like a cluster of soft, pale moons radiating light onto the bleached sea of sheets in which she's drowning." https://pitchfork.com/reviews/albums/467-i-am-a-bird-now/