Coldplay frontman Chris Martin has ruled out a collaboration with teen heartthrob Justin Bieber.
The singer told a Sunday newspaper that he is worried that he would look "wrinkly" while standing next to the youngster.
Martin has worked with Rihanna but it appears that Bieber would be a step too far.
He told the Sun on Sunday: "Rihanna was top of our list of collaborators, and we've done that.
"She was lovely -- she was cool. We'd work with anyone who wanted to work with us.
"But Justin Bieber is too handsome for us.
"If he wants to do a video with four people who look like his grandparents then we should be in it."
"But we've got to look good -- we'd just look terrible next to that guy."
He added: "He's good-looking and has an amazing complexion."
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