Bono knew he couldn't just sing at the track. He had to sing with Michael. He had to create a bridge between the living and the dead.

Among these tracks was "Slideaway." In its raw form, it was a dark, brooding masterpiece. Michael’s vocals were captured in a low, gravelly register, a stark contrast to the soaring falsettos of his stadium-filling days. It was a song about the exhausting gravity of fame, the desperate need to escape, and the terrifying beauty of letting go.

On the mixing console lay a master tape labeled simply: Slideaway .

"I'm gonna wake you up..." Bono sang, his voice cracking slightly with genuine emotion. "I'm gonna wake you up, black dog!"