One Direction Star Harry Styles Will Become The "Biggest Star In The World When I Sign Him" - Jay Z

Roc Nation boss Jay Z has got his eyes on Harry Styles, and has reportedly promised to make him “the biggest artist in the world”.

The music mogul, who has mentored the likes of Rihanna, Shakira and Kanye West, has vowed to give Harry the help he needs to forge a solo career.

"Harry doesn't need any help with exposure, everybody in the world knows who he is,” he reportedly told The Daily Star Sunday.

"But he does need to make the transition from being part of a group to becoming an individual artist."I can get him working with the bigger artists, the biggest producers - and have him as the biggest artist in the world within a year."