Nicki Minaj has told of her shock and delight when Beyonce approached her and asked her to feature on a remix of Flawless.
The Anaconda singer told US radio show Hot 97 how Beyonce gave her carte blanche with the track, and supported her all the way.
Nicki revealed: "A month or two ago, Gee [Roberson] called me when I was on my way to Vegas and said, 'Beyonce wants you to remix to Flawless.'
"After I got proper medical help and started breathing again, I was like, 'What?'
"She sent me a version that she wanted. She told me, 'I want you to be you. I don't want you to hold back.' I said, 'You sure?' She said, 'Yeah. I want you to be you and do you.'"
She continued: "I was actually in New York writing the verse. I recorded the verse in New York and she stopped by the studio. She was such a sweetheart. She was hyping me up, 'Do your thing. Don't hold back. Go in.' I was like, 'Okay. Alright.'"
The former American Idol judge also revealed how after meeting up at the New York studio she kept sending photos of herself to Beyonce to use on the artwork - resulting in the single cover featuring a collage of selfies of both stars.
Nicki said: "We've just been waiting for her to drop it. She said she was going to drop it in the middle of the [On the Run] tour. I wrote the verse before she even went on tour. We've been going back and forth. I've been sending her photos of myself. We've been going back and forth about the mixes and the single art.
"And now, here you have it."