"Weak Heart" is a song by Swedish singer Zara Larsson.

It was released on 12 January 2015 through TEN Music Group as the fourth and final single from her debut album 1 (2014).

[1] "Weak Heart" debuted at number 53 in Sweden and spent four weeks on the chart.

[2] The music video for the song was released on 5 December 2014, directed by David Soutar.

The video sees Larsson riding a horse.