The singing man in Coldplay, Chris Martin, has said he's written/is writing a song (or songs) for the new Rihanna album but he doesn't know what will happen with it all actually.
Having a chat to someone from Fresh 102.7 New York (as quoted here), the former vegetarian said the following things:
"I don't even think she asked. I just said, 'Please can I try something?'"
Mind you, he's not exactly hopeful about his chances to be honest with you.
"She has so many amazing people writing for her," he said. "It's like trying to win American Idol, getting a song on Rihanna's album."
So there you go.