«On My Mind» is a song recorded by English singer and songwriter Ellie Goulding from her third studio album Delirium (2015). It was released as the album’s lead single on 17 September 2015. It was written by Goulding, Max Martin, Savan Kotecha and Ilya Salmanzadeh, and produced by Martin, Continuous and Ilya. «On My Mind» is a pop and electropop song with its instrumentation consisting in scratchy guitars, trap drums, slapped beats and sharp, syncopated electronica. Lyrically, «On My Mind» talks about a drunken hookup with someone the protagonist shouldn’t be with, having a dichotomy between heart and head. Though firmly denied by Goulding, many critics considered it an answer song to Ed Sheeran’s «Don’t».
The song received mainly positive reviews from music critics, who praised it for being a radio-friendly song, as well as Goulding’s delivery, with one critic calling it one of her best singles to date. Commercially, «On My Mind» became another top-ten hit in the United Kingdom, as well as in Australia and other five territories, while reaching the top 20 in other seven countries. In the United States, it has so far reached number 18 on the Billboard Hot 100. Its western-theme music video was inspired by the film Thelma & Louise and was directed by Emil Nava. It premiered on 21 September 2015, and it shows Goulding in a revenge story in Las Vegas