Sanna Viktoria Nielsen ( born 27 November 1984 ) is a Swedish singer and television presenter . After her seventh attempt , she won Melodifestivalen in 2014 with the song " Undo " and so represented Sweden in the Eurovision Song Contest 2014 in Copenhagen , Denmark , finishing in 3rd place overall . Sanna was one of the Eurovision Song Contest 2015 commentators for Sweden and hosted Melodifestivalen 2015 along with comedian Robin Paulsson . She was announced as the new presenter for the sing-along show '' Allsång på Skansen '' for the summer of 2016 . She hosted '' Eurovision The Party '' at the Tele2 Arena for the Eurovision Song Contest 2016
Melodifestivalen in 2014
Melodifestivalen 2014
Sanna Nielsen