'Song needed to come out to keep the foundation on what Britney represents,' said the former Black Eyed Peas man
'The Voice UK' coach is reportedly counter-suing the singer over 'i am OTHER' YouTube channel
Sub Focus, Zane Lowe, Mikky Ekko and A*M*E have also been announced for the London bash
Black Eyed Peas man discusses origins of new collaboration with Chris Brown
X Factor judge sues the Black Eyed Peas man for publishing royalties
'Reach For The Stars' is the first song to debut on another planet
Singer's new track 'Reach For The Stars' to be blasted through speakers of Mars Curiosity robot