On May 12, Rock and Roll Hall of Famer Dion will release Kickin’ Child: The Lost Album 1965, a 15-song collection that, as its title suggests, was recorded by the singer 52 years ago, but never released in its intended form.

As the 77-year-old Dion tells it, the reason for the delay was a combination of fleeting memory and a simmering frustration with his old label, Columbia Records.

“I just forgot about this album,” Dion recently told Billboard. “There were a lot of bad relationships that got very convoluted up at Columbia. … There were a lot of bad vibes around the whole thing.”

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