It was the collaboration that might’ve been a smash success, but didn’t happen. Phil Collins and Adele were reportedly supposed to collaborate on her monstrously successful new album 25, but it fell through in the end. In a new interview, Collins addressed the collaboration that never was.

Collins opened up to Billboard about his potential work for 25.

“She sent me a piece of music that I began working on, but then she was very difficult to find. She had a kid - all this personal stuff was happening to her, unbeknownst to me. I sent her an email asking, 'Am I waiting for you, or are you waiting for me?' I found out she’s a bit of a ghost - Ryan Tedder told me that. You may not hear from her for awhile. So nothing came of it," he revealed.

Collins is also suffering from physical pains, including a dislocated vertebra and some nerve damage in addition to fractures on his feet. Despite his ailments, Collins, 64, sees a reinvention on the horizon for 2016. He will begin his comeback by reissuing Face Value, his solo debut album released in 1982, as well as Both Sides, released in 1992. Both were released Friday (Jan. 29) through Rhino Entertainment.

In October, Collins announced he was coming out of retirement and that he was planning a comeback in the music industry. He was even interested in reuniting his former band Genesis. Collins had made a bit of a disappearance from the music industry following his album Testify, which was released in 2002. He also released a Motown cover called Going Back in 2010, but announced that he was retiring almost immediately after in order to spend more time with his children.

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