Rapper putting out new music with Detroit cohort Royce Da 5’9
Rapper tops bill at two-day bash which returns after four years
U2, Beyonce and Neil Diamond also walk away with prizes
Detroit pair hook up again for June release
Arctic Monkeys, Deadmau5, Cee Lo Green also for Chicago event<br />
But rapper is losing out in the Twitter stakes, still
Rapper celebrates his home city in new clip
Find out which bands are joining Rihanna and Eminem on the bill
The nine tracks are thought to be from rapper's scrapped 'Relapse 2' LP
Rapper's manager says he will be concentrating on record label