Sony/ATV Music Publishing has signed Canadian singer/songwriter Claire Boucher, aka Grimes.

It's the company's first deal through its new joint venture Rough Customer, with Grammy-winning songwriter Jack Antonoff. 

The worldwide agreement includes the songs on Grimes’ fourth studio album, Art Angels, which she wrote and produced entirely herself and became her first Top 40 hit in the US and UK following its release last November. 

The deal also solidifies her working relationship with Jack Antonoff. Back in the spring Grimes collaborated ...