The music legend has announced the reissue of Ram, which was the star's second post-Beatles project.
It was also the only one of his records which credited both MCCartney and his beloved partner, who died from cancer in 1998.
MCCartney hopes the album, which will include four CDs and a bonus Dvd, will help fans revisit their hippie hey-day.
He says, "Ladies and gentlemen, this is an album from a long, long time ago, when the world was different.
"This is an album that is part of my history - it goes back to the wee hills of Scotland where it was formed. It's an album called Ram.
"It reminds me of my hippie days and the free attitude with which it was created. I hope you're going to like it, because I do!"
The record will be re-released in May 12.