The Skyscraper hitmaker will become the youngest, female celebrity to have her own mobile game when she launches the untitled project later this summer (15).

In the Pocket Gems game, users will be able to navigate through a storyline of becoming a famous musician and Lovato's music will also be featured throughout.

Pocket Gem's Jameel Khalfan tells, "If you incorporate an artist with Demi, it becomes more real.

"You get to see things that have helped her along the way. We wanted to come up with a compelling story our users will love. They're all aware of her story."

Kanye West's wife launched Kim Kardashian: Hollywood last year (14) and the game has earned the reality TV star an estimated $20 million (£12.5 million) from sales.