"Heartbeat" is a song performed by Latvian singer Justs.
[1] The song was released as a digital download on 3 February 2016 through Aminata Music.
On 31 January 2016, Sirmais was announced as one of the twenty competing acts in the second season of Supernova, with the song "Heartbeat".
[3][4] In the first heat on 7 February, Sirmais advanced to the semi-final after winning over 40% of the televote.
[5] He competed in the semi-final on 21 February and advanced to the final through televoting.