Rock and Roll Hall of Famer Dion will release his Kickin’ Child: The Lost Album 1965 on May 12th. The album contains fifteen songs recorded 52 years ago but was never released.

Dion, 77, says the delay was due to his fleeting memory and frustration with Columbia Records, his old record label.

“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.”

After leaving the label, they released seven of the tracks from this album in 1965 and 1966. But, hearing the songs again, as they were originally intended, helped Dion change his attitude toward his old adversary.

“The cloud lifted like vapor,” he told Billboard. “It just lifted right out of my head. And I heard the music loud and clear like it was present to me. It wasn’t a novelty. It was rich. It wasn’t artistic, it was heartfelt. It was live. It was the real deal. And I said, ‘Man, this stuff is good.’ And I was proud of it.”