The fifth Idols final was held on March 29, and Koivunen won over the judges completely with his version of the Broadcast ballad "You Break My Heart". For his second song, Koivunen sang the Finnish hit "Sielut iskee tulta" by the heavy metal band Kilpi. With these performances, Koivunen made it to the Idols final which was held on April 6, 2007 in the Helsinki Ice Hall, where he defeated his fellow competitor Anna Abreu by gaining 57% of the public vote. Koivunen sang the Sonata Arctica song "FullMoon" (which he also sang in the auditions), the Soundgarden hit "Black Hole Sun" (chosen by the judges), the Scorpions ballad "Still Loving You" and the song "On the Top of the World" which was composed for the Idols winner.