Ellise’s first official non-single release was Can You Keep a Secret?, a Halloween extended play themed around horror movies, using music boxes and pulsing bass hits throughout. Preceded by the release of Ghost as a SoundCloud exclusive single, the debut extended play was released on October 12th, 2018 to celebrate Halloween. The EP included four tracks, including one of the same title. The opening track, 911, proceeded to trend. She followed it up with the standalone single Keep It to Myself in early 2019, and an accompanying music video.