"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.

The song achieved further success topping the charts in Germany and Switzerland, until it was overtaken by Murs' 2012 single "Troublemaker". The song has charted at number six in Ireland, becoming his second highest-charting single in the country at the time. The song gave Murs his second consecutive nomination for "Best British Single" at the 2012 BRIT Awards, after "Please Don't Let Me Go" was nominated at the 2011 ceremony. The track was released as Murs' debut single in the United States on 22 May 2012. The track has been remixed for the American market, removing Rizzle Kicks and including a new verse from Chiddy Bang. It entered the Billboard Hot 100 at #96, and managed to peak at #25 on the Pop chart.

"Heart Skips a Beat" was written by Alex Smith, Preston, Jim Eliot and Rizzle Kicks. It is the only song Murs did not co-write for the In Case You Didn't Know album. Of the track, he said: "It was a curve ball and nothing like anything else on the album, but I loved the production and the writers wrote it for me." The song had originally been put forward for his debut album but Murs' team held it back in order to launch his second album In Case You Didn't Know, with Rizzle Kicks being implemented on the track two weeks before the final version was made.

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