 "Sweet but Psycho" received controversy for the lyrics and subsequent music video stigmatizing the perception of mental illnesses such as psychosis and psychopathy, with mental health organizations in Ireland attempting to ban the song from radio.Upon release, it appeared on various Spotify playlists before subsequently peaking at number one in 22 countries including Sweden, Finland, Norway, and the United Kingdom, where it stayed at number one for four consecutive weeks.The song is Max's first top 10 in the United States, peaking at number 10 on the "Billboard" Hot 100.