The cover is shot by Sebastian Kim. (source)
Click here to view last year cover featuring Chloë Grace Moretz, here to view 2015 cover featuring Anna Kendrick, here to view 2014 cover featuring Jessica Alba, here to view 2013 cover featuring Pink, here to view 2012 cover featuring Carrie Underwood, here for 2011 cover with Olivia Wilde, here for 2010 cover with Crystal Renn, Alessandra Ambrosio and Brooklyn Decker, and here for 2009 cover with Renee Zellweger.