When You Really Loved Someone

"When You Really Loved Someone" was by written and produced by Swedish songwriter and producer Jörgen Elofsson. The sound of the song and the album can be described as "very mature and worthy", according to Fältskog herself.^[1]

Upon its release, the single received a lot of media coverage, mostly in the context of Fältskog's musical comeback and news about the forthcoming album. The Swedish media reviewed the song, calling it an "epic ballad",^[2] and highlighting its acoustic elements, like strings, guitars as well as the sweet harmonies.^[3] Swedish newspaper Aftonbladet pointed out the contrast between production and musical elements from the 1970s and the synth-loop in the latter half of the song, which would also suit for the likes of Britney Spears.^[4] Online portal Musikindustrin referred to these elements as "charming 80's synths".^[5]

In order to promote the song, a video for "When You Really Loved Someone" was shot, featuring Fältskog herself as well as actors Max Fowler and Camilla Rowland. The scenes with Agnetha Fältskog were shot at Ulriksdal Palace, the same location as the shooting of most promotion pictures for Fältskog's current album project. Rowland, who apparently plays a young Fältskog, and Fowler, portraying her lover, shot their scenes in London. The video was directed by Simon Fowler, produced by Beau Fowler and designed by Blair Barnette.^[6]

The video premiered on YouTube on March 11, 2013 (2013-03-11), the same day as the release of the single itself.

Two official remixes of "When You Really Loved Someone" were made available.^[7]

On the 31st August 2023, Faltskog announced her reimagined version of her 2013 album 'A'. The track listing has stayed the same (with the exception of her new single 'Where Do We Go From Here?'); however, the order of the songs has changed. 'When You Really Loved Someone' is the 10th song on the album, whereas previously it was 2nd. ^[8]