"Heart Attack" is a song by recorded by American singer Demi Lovato for her upcoming fourth studio album Demi (2013). It was released on February 24, 2013 by Hollywood Records as the lead single from the album. The song was written by Mitch Allan, Jason Evigan, Sean Douglas and Nikki Williams, and was produced by Allan and Evigan under the alias, The Suspex. "Heart Attack" is an electropop song that employs cardiac arrest as a metaphor for lovesickness. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.