When asked about her inspiration for Treat Myself in a March 2018 interview, Trainor said that she missed pop songs that were "big anthems", citing "Stronger" (2000) by Britney Spears as an example. She also revealed she was listening to a lot of ABBA's music, hoping to create a big pop song that is "actually kind of vulnerable". In May 2018, Trainor said that the album had developed into "fun, dance-y stuff with a little funk" and had an '80s and '90s feel, reiterating she wanted to bring Spears, NSYNC and Backstreet Boys-inspired pop songs back to radio.
