The duo's recent day date comes less than a month after they made their red carpet debut as a couple. Not only did they seemingly confirm their romance but they also shut down AHS 100th Episode event with their spot-on couple's costume as Sonny Bono and Cher.
In true Halsey fashion, her Halloween costume was far from basique. She channeled the legendary singer in a rainbow-colored polka dot dress that Cher famously wore on her and Sonny's show. Additionally, Evan totally got into character and looked identical to the late singer with his shaggy hairstyle, mustache and '70s-inspired suit.