How Madonna and Gandalf ended up on Troye Sivan's new album

Key points

• Troye Sivan's fourth album, She's The Best, features collaborations with Nicole Kidman, Sir Ian McKellen, and Lily-Rose Depp, along with a sample from Madonna.
• The singer, who splits his time between New York and Melbourne, wanted to honour his close friends and supporters.
• Sivan's connection with McKellen dates back to their work together in Waiting For Godot in 2010, when Sivan was grappling with coming out as gay.