A Brief Inquiry into Online Relationships is the third studio album by English band the 1975. It was released on 30 November 2018 by Dirty Hit and Polydor Records. Initially titled Music for Cars, the album was intended as the follow-up to I Like It When You Sleep, for You Are So Beautiful yet So Unaware of It (2016). The term later denoted an era encompassing both their third album and Notes on a Conditional Form, released in 2020. The band halted recording of the first part after lead singer Matty Healy left for a drug rehabilitation clinic in Barbados, seeking treatment for his heroin addiction. Following the singer's return, the band spent several months completing the album in Northamptonshire and Los Angeles.

The 1975 are an English pop rock band formed in Wilmslow, Cheshire in 2002. The band consists of Matty Healy, Adam Hann, Ross MacDonald (bass), and George Daniel. The name of the band was inspired by a page of scribblings found in Healy's copy of On the Road by Jack Kerouac that was dated "1 June, The 1975".