Madonna has confirmed that she is collaborating with Natalia Kills aka Natalia Capuccini. The confirmation came via Instragram when Madge posted a photo with the caption "Working the midnight shift with Natalia Kills. 2 girls on a couch..........don"t it taste like Holy Water?"
In case she's escaped your notice Natalia Kills has released two albums to date. The first was the Perfectionist in 2011 and the second Trouble in 2013.