'Unapologetic Bitch' is rumoured to feature Katy Perry
Singer claims Major Lazer producer is "a slave driver" in the studio
The project will mark Madonna's third time in the director's chair
The pop icon recently confirmed she is working on a new album
The star posted about the collaboration on Instagram yesterday (March 7)
The singer wants to collaborate with Drake on the record
Pop icon says she will be 'honoured to introduce her fellow freedom fighters'
The event will take place on Sunday night (January 26) in Los Angeles
Reports say singer will perform duet at event
The 'MDNA' singer uploaded an image of her son boxing along with the caption '#disnigga'