The song was written by the band members with James Abrahart, Jason Evigan, Rami Yacoub and Sarah Hudson, with production by Fabrizio Ferraguzzo, during a recording session in Los Angeles, California.

[5] On 21 September 2022, Måneskin posted on their social media accounts a video featuring a letter with cursive writing, with the focus on two words: "The Loneliest".

"[7] Gianni Poglio of Panorama described the song's strengths, finding them in the singer's "focused and effective" performance, production and musicianship, and the guitar solo, defined as "original and melodically flawless.

[10][11] Vogue Italia's Giacomo Aricò wrote that the video has "a strong dark component from the cinematic references typical of the Gothic style," dwelling on the sequence defined as "symbolic" where "the frontman experiences a splitting between his subconscious (where we see him drowning) and reality (where he vomits water at the funeral).

"[5] Alessandra De Tommasi for Vanity Fair Italia found that "this almost Burtonian dark-tinged narrative amplifies the power of the song itself" finding the direction "splendid.