"När vi två blir en" (When we two become one), written by Per Gessle, also known by the refrain's opening line "Jag vill känna din kropp emot min", is a song with lyrics describing teenage love, released as a single on 29 October 1980 by pop group Gyllene Tider. Göran Fritzson wrote the Farfisa intro and the hook.^[1] Gyllene Tider also recorded the song with lyrics in English, as "Beating Heart", releasing it as a promotional single on 1 September 1981 using the group name Modern Times.

The song became a major hit in Sweden and Norway, topping the singles charts in both countries. A recording by Miio & Daddy Boastin'^[2] became a 2003-2004 hit, topping the Swedish singles chart.

The Gyllene Tider version charted at Svensktoppen for 10 weeks between 14 December 1980^[3] and 1 March 1981,^[4] peaking at 2nd position. The Miio & Daddy Boastin' version was tested for Svensktoppen on 3 August 2003, but failed to enter the chart.