Fans and friends are still mourning the loss of legendary musician Prince following his untimely death on April 21, and those who knew and who worked with the artist have been sharing stories about Prince that the public never knew. According to The Hollywood Reporter, during a Tribeca Film Festival Q&A about the upcoming Netflix musical drama The Get Down, director Baz Luhrmann spoke about a collaboration with Prince for the soundtrack of his 2013 film, The Great Gatsby, and revealed why the song never came to be.

"It was a reimagined version of a song he did with Martika called 'Love … Thy Will Be Done' and it was going to be a major piece in [the film]," Luhrmann said, adding that the song did in fact exist somewhere in the world. "We did work on it. He was in Australia touring and we did some work there. We did further work on it. In fact, we worked on it a lot."

According to Luhrmann, the song was "co-owned," which caused some issues that ultimately resulted in it being shelved. "He couldn't quite get it released. And at that stage I had to make another decision, so I went and worked with Lana Del Rey to do the piece we did." Del Rey's song, "Young and Beautiful," went on to receive a Grammy nomination for Best Song Written for Visual Media.

"Working with him, he is what he appears to be: one of a kind," the director said of Prince, who he worked with on a gospel version of "When Doves Cry" for the film Romeo + Juliet. "There's only one Prince, and it's a great sadness that he's no longer with us."

Not long after news of Prince's death broke, fans and journalists alike began asking what would become of the vast collection of unreleased music that the artist is known to have locked away in an actual vault. While some believe that the music should remain unheard, many others hope that songs like the one made for The Great Gatsby will someday reach the public.

[h/t The Hollywood Reporter]