Madonna Tribe are reporting that 'MDNA' will include collaborations with LMFAO, Mika and Klas Åhlund.
It's not known exactly which song LMFAO will appear on — although it seems likely it will be on the 'Give Me All Your Luvin'' remix — while Mika and Åhlund all apparently have writing credits.
The site is also reporting that Nicki Minaj will appear on one other song on the album, 'I Don't Give A'.