Of course it does They were in the studio together last year and then Rihanna tweeted "Pray 4 Me" and Big Sean iimmediately RT'd it. The producer is probably Key Wane (Beys Partition)
Sean also supported her with a performance on the Diamond Ball in december and she recently told i-D Mag that she loves "IDFWU". Its 100% true.
On TF1 (biggest TV channel in France), they talked about FFS (Grammy performance, music video being VEVO certified, her new sound, etc.), they hyped R8 & they talked about HOME (GMA interview & movie footage).