Sir Paul McCartney has announced that he will be releasing a new children’s picture book. The new book entitled, ‘Grandude’s Green Submarine’, appears to be derived from The Beatles 1996 song, ‘Yellow Submarine’ as well as the 1968 film of the same name.

The new book will follow the adventures of the character Grandude, who along with his grandchildren must embark on a quest to search for Nandude, their music-loving grandmother. ‘Grandude’s Green Submarine’ will be illustrated by Kathryn Durst, Durst illustrated McCartney’s previous children’s book, ‘Hey Gandude!’, released in 2019.  ‘Hey Grandude’s’ title is also based on one of the band’s tracks, ‘Hey Jude’ by The Beatles, which was released in 1968 and has remained a major part of the legendary band’s repertory.

McCartney released a statement describing his delight with his new book, “I’m really happy with how HEY GRANDUDE! was received, as this was a very personal story for me, celebrating Grandudes everywhere and their relationships and adventures with their grandchildren, I love that it has become a book read to grandkids at bedtime all around the world. I always said if people liked the first book and there was an appetite for more, I would write some further adventures for Grandude – so he’s back and this time with his special invention, Grandude’s green submarine!”

Durst also shared her excitement over the project in a statement, “I am so thrilled to be collaborating with Paul again on Grandude’s Green Submarine. I think this is the adventure book we all need during this time, when everyone is stuck at home and longing to travel to exciting new places. I really enjoyed drawing the newest character in the book, Nandude, particularly because we both share a love of playing the accordion!”

The pair’s last release, ‘Hey Grandude!’, was wildly popular and also focused on the grandfather character, a hippy grandfather type with a beard and a ponytail. McCartney’s idea for the character came from one of his eight grandchildren who started to call him Grandude, which in turn inspired the singer to write the first book.

The new book will be released on 2nd September 2021, but this is not the only book by McCartney to be released this year. The former Beatle’s memoir which will chronicle his famed songwriting career, ‘Lyrics’ is also released this year on 2nd November 2021.

Click here to pre-order the book.