Taylor Swift (in Valentino) is gracing the June 2015 cover of Glamour UK. She is also guest edited the issue. The cover was shot by Damon Baker and styled by Natalie Hartley. (source)
Click here to view last year cover featuring Lily Allen, here to view 2013 cover featuring Gwyneth Paltrow, here to view 2012 cover featuring Jennifer Lopez, here for 2011 cover with Nicole Scherzinger, and here for 2010 cover with Sarah Jessica Parker.