"heart skips a beat" is a song by english singer-songwriter olly murs, taken from his second studio album, "in case you didn't know". the song features vocals from english hip hop duo rizzle kicks, and was released as the album's lead single on 19 august 2011. it was written by alex smith, preston, kish mauve and rizzle kicks. in the united kingdom, the song debuted at number one with first-week sales of over 109,000 copies, becoming his second number-one single. it also served as the closing song at murs' 2012 arena tour.