On October 27, 2024, SM Entertainment announced that Taeyeon would be releasing her sixth extended play titled Letter to Myself with the lead single of the same name on November 18.

[3] Highlight clips for the album tracks "Blur",[4] "Hot Mess",[5] "Strangers",[6] "Blue Eyes",[7] and "Disaster",[8] were released between November 7 and 13.

[12] The second track, "Hot Mess", was described as a pop song defined by "charismatic atmosphere" featuring "rough guitar distortion and cool synth rhythm" with lyrics about "not hesitating to choose imperfection even in a chaotic world".

[13] The third track, "Blue Eyes", was described as a R&B song highlighted by "sweet guitar line and rhythmic trap drums" with lyrics that "metaphorically expressing about falling in love without hesitation even in the midst of emotions crashing like huge waves".

[14] The fourth track, "Strangers", was described as a R&B song distinguished by "delicate piano line and gently resonating guitar rhythm" with lyrics conveying "the loneliness and freedom that a stranger in an unfamiliar city feels among people, depicting a moment when unfamiliar yet strange emotions intersect".