Hearts on Fire (HammerFall song)  "Hearts on Fire" is a song by Swedish heavy metal band HammerFall released as their single on September 30, 2002. It was the only single released from their fourth studio album, "Crimson Thunder". It ranked 11th in the Swedish charts and 58th in Germany. The cover artwork was created by Samwise Didier. A promotional DVD, also titled "Hearts on Fire", was released by Nuclear Blast on November 4, 2002. It ranked 9th in the Swedish charts. From Metal Archives. From the song's web page.