On July 20 2015, Madonna announced that Diplo would be the opening act for the launch of her Rebel Heart Tour on September 9 and 10th at the Bell Centre in Montreal, Quebec:
“To have Diplo open for me is my dream come true. Montreal is about to TURN UP!!!! We Go Hard or We Go Home!”
With Madonna, Diplo produced and co-wrote the songs Living For Love, Bitch I’m Madonna, Unapologetic Bitch, Veni Vidi Vici, Best Night and Hold Tight.
Today In Madonna History 
A year later, Rebel Heart is still a Masterpiece! I can’t stop listening to it!
He did not co-write Graffiti Heart but did co-write Hold Tight & Best Night!