“Sweet but Psycho” is a song by American singer Ava Max, released as a single on August 17, 2018 through Atlantic Records. It is the first single from her upcoming debut studio album.
It was co-written by Max along with Madison Love and Cirkut, the latter of whom produced the song. Upon release, it appeared on various Spotify playlists and Viral Charts, and subsequently reached number one in 22 countries including Germany and the United Kingdom, where it stayed at number one for four consecutive weeks. It is also her first top ten hit in the United States, peaking at number 10.
As of June 2019, it has led the Hungarian Stream Top 40 chart for 19 non-consecutive weeks, beginning in February 2019, and also ended up being the biggest radio song of 2019 in the country. “Sweet but Psycho” was also the biggest song of 2019 overall in Slovenia.