Espen Grjotheim (born 20 September 1976) is a Norwegian singer and actor. Grjotheim played Sky in Mamma Mia! at the Folketeatret, which premiered on 19 March 2009. 　　Grjotheim took part in the first series of Idol in Norway in 2003, where he finished fifth, behind Kurt Nilsen and others. 　　He has also appeared in "The Full Monty" (Den Nationale Scene 2002), "Fame" (Chat Noir 2003), "La Cage Aux Folles" (Oslo Nye Teater 2004). He has worked with numerous record producers, including Sissel Kyrkjebø, Bel Canto, Erik Faber and Maria Arredondo. In 2008, Grjotheim and others were guest soloists on Secret Garden's world tour. The premiere was in China on 25 April. Later, they toured China, Korea, Europe and Norway. He performed guest vocals on the song "Powered By Nature" for Secret Garden's 2011 album "Winter Poem".