In late 2013, a 14-second video clip appeared on Instagram showing a close up of a computer monitor with software running and recording a melody for strings.

Björk recalled the genesis of the song to Rolling Stone magazine, which occurred shortly after recovering from vocal cord surgery in 2013: "I couldn't speak for three weeks… But the album was a new beginning.

Björk described her relationship to Levi's music on Dazed Digital's exclusive premiere of the remix series: "Mica is someone I have been following growing since 2008.

Sooo exciting to witness her grow into a full on composer carry(ing) the weight of such things as (the soundtrack to) "Under the Skin."

For her part, Levi stated, "I did a karaoke version more than a remix, because I love her string arrangements and thought it would be an opportunity to draw attention to them.

UNTOLD revealed that he learned the remix would be officially released after one of Björk's 2015 New York City Center shows in early 2015.

"Lionsong" received a strings-only version with an additional violin solo done by Una Sveinbjarnardóttir, who was a part of the Icelandic String Octet that joined Björk on stage for her 1998 Homogenic tour.

"Lionsong" has proven itself one of Vulnicura's most popular songs and has been described as "majestic and sad" by Spencer Kornhaber of The Atlantic[9] and "tense" by The Telegraph.

For her, that was really the basis of the imagery around this album, this transformation and soft, waxy, yellow-pink coloring… She said she wanted to have a wound on her body, on her heart, in an abstract way.

From there, we worked with our stylist Mel Ottenberg on the character, and that's when he found this black latex suit and the headpiece by a Japanese designer [Maiko Takeda], which she'd already worn once on stage…" during the summer of 2013 while touring Biophilia.

"Björk's character for "Lionsong" had to be smooth like a spider waiting in her web and seductive like a Balinese dancer cast in bronze," the duo told Noisey.