"If I Had a Heart" is a song performed, written, and produced by Swedish recording artist Fever Ray (Karin Dreijer). It was released as the lead single from their self-titled debut album, Fever Ray (2009), marking Ray's debut single as a solo artist, after their work with their previous band, The Knife. The track was first released digitally in Sweden and across Europe on 15 December 2008 by Rabid Records, followed by a digital EP release on 26 January 2009. It was later released on CD, 7", and 12" formats in early 2009. The single's B-side premiered three days prior to the single release on Stereogum and is a remix of the track done by English experimental duo Fuck Buttons, the duo's maiden work as remixers.