Trending badgeTrendingPosted 1 hour agoSubscribe to BuzzFeed Daily NewsletterCaret DownPeople Have Just Learned How Old Mark Ronson Is, And They Actually Can't Believe It "I know 30 year olds that look older than him."by Stephanie SoteriouBuzzFeed StaffFacebookPinterestLink People have been stunned to learn exactly how old musician Mark Ronson is, with many genuinely unable to wrap their heads around the milestone number.