The "Hold On, We're Going Home" hitmaker insists his close friendship with Rihanna, 28, isn't fabricated, reported Femalefirst.
"We're not forcing some story on people. A lot of the music and energy we have is genuine. We have a genuine energy.
"I was like I think I have one that would follow this one 'Work' up really nicely. It was like a flawless victory when she sent it back. Every nuance, every cadence was perfect ... That's what makes the record.