Microsoft is ramping up its promotion of Windows Phones 8 by reportedly recruiting Jay-Z, Gwen Stefani and James Corden for a series of TV ads that will debut in the UK later this month.

The Sun reports that Corden’s ad will see him “fiddling” with his smartphone and playing with apps. Microsoft has already signed up TV presenter Holly Willoughby to promote the Windows Phone 8’s Kid’s Corner feature and had Jessica Alba appear at the Windows Phone 8 launch.

The past few days have seen a series of announcements around Windows Phone 8, including the launch of a battery-saving Skype app for the OS.