At Cosmopolitan, the best-selling cover this year featured Kim Kardashian in April, with 1.2 million copies sold, followed by the Miley Cyrus in March with 1.1 million copies. In 2012, three out of five of Cosmopolitan’s top covers featured the celebrities Demi Lovato with 1.379 million copies sold, Khloé Kardashian at 1.354 million copies and Selena Gomez at 1.334 million copies.
Im very happy Demi's sold the best but I think we have to take in consideration their may have been an overall sales drop. Magazine sales are going down.
Well duh, Selena has released an album within a year and had been doing movies and Demi had been on the X Factor whereas Miley had almost dropped off the radar.