Paul McCartney collaborated with Lady Gaga for this new soundtrack

In 2005, Paul McCartney co-authored a children”s book, High in the Clouds, about two competing ways of life, Animalia and Megatropolis, featuring a squirrel and frog as protagonists.

Predictably, the animal heroes are headed to the big screen, with a film version of High in the Clouds in development for the last couple years, with Cloudy with a Chance of Meatballs 2 director Cody Cameron set to direct.

But, as this is a McCartney passion project, the Beatles” great is working on songs for the movie, with Deadline reporting that McCartney has seven or eight new songs set for the film, and will even voice one of the characters, according to Rolling Stone

Read the full article at Radio.com.