Taylor Swift, Robbie Williams For Summertime Ball
Jessie J, Will.I.Am & more are also due to perform at Capital FM event...
Jessie J have all been added to this year's line-up of Justin Timberlake would The Saturdays andOlly Murs have also been confirmed to perform.
Lawsoncurrently complete the star-studded roster.
The likes of Justin Bieber, Cheryl Cole and Usher performed at the concert in 2012.
Pre-sale tickets for the Capital FM Summertime Ball are available now, with general sale beginning on Friday (April 26) at 8am.