1940 Carmen is the eighth studio album by Chilean and Mexican singer Mon Laferte, released on 29 October 2021 through Universal Music México.

[2] Laferte had been trying to get pregnant for a year and found out that when she had undergone radiation for thyroid cancer in 2009, her ovaries had been affected, she started taking hormones as part of her fertility treatment which impacted on her songwriting for the album.

[3][7] The song "A Crying Diamond" deals with the experience of abuse Laferte suffered when she was a teenager which, according to her, the hormones she was taking allowed her to write about more intimate topics.

[9] Additionally, several live performance videos were released for different songs from the album like "A Crying Diamond", which featured backing vocals and instrumentation from musicians Renee, arroba nat, Bratty and Cancamusa.

[10] Thom Jurek from AllMusic gave the album four out of five stars, writing that "it reflects Laferte's particular gifts as a songwriter capable of juxtaposing conflicting, even contradictory emotions and psychological states as well as imbuing physical landscapes and personal interactions, no matter how brief and/or casual, with profound implications", he also commented that "though a 180-degree turn from the Mexican regional music employed on Seis, 1940 Carmen is every bit its equal in creativity, emotional depth, and execution".