“deja vu” is the second single from Olivia Rodrigo’s debut studio album, SOUR, and her first release since the breakout success of her debut single, “drivers license.” This song finds Olivia at a different stage than its predecessor, with her beginning to move on from heartbreak. Olivia questions both the authenticity of her ex’s new relationship, as well as their emotions for their new girl. She also portrays feelings of pity towards this new girl, who is not experiencing anything unique with her now-lover.

Despite sharing similar themes, “deja vu” is musically different from “drivers license,” with a more upbeat melody. It shows influences from Taylor Swift, both melodically and lyrically, especially in the bridge and outro—an interpolation of Taylor’s August 2019 song “Cruel Summer” was officially credited months after release. The music video shows Olivia spying on another woman—played by actress Talia Ryder—and emulating her life out of adoration, including wearing nearly identical clothing, traveling to the same locations, and copying her actions. Eventually, the woman makes it known that she was aware of Olivia’s stalkery the entire time, and taunts her, leaving Olivia enraged.

In the week preceding its release, Olivia cleared all of her posts on her Instagram account and began posting a series of cryptic videos, showing various clips on an analog television. Three of these teasers were shared before the official announcement of the song on March 29, 2021. The day before its release, Olivia posted an acoustic snippet of the song on TikTok.