Heart Attack

The song "Heart Attack" by Demi Lovato is written and performed in the key of A major. It was released on February 24, 2013, as the lead single from Lovato's fourth studio album titled "Demi." The track was co-written by Lovato herself along with Mitch Allan, Jason Evigan, and Sean Douglas. "Heart Attack" debuted at number 12 on the US Billboard Hot 100 and received positive reviews from music critics. In terms of trivia, this song marks a shift in Lovato's musical style towards a more pop-rock sound, showcasing her powerful vocals and emotional delivery. The melody of "Heart Attack" features a catchy chorus and an energetic instrumental arrangement, highlighting Lovato's ability to convey the emotions of heartbreak and vulnerability.