"911" is a song by American recording artist Lady Gaga, from her sixth studio album, "Chromatica" (2020). It was released as the album's third single on September 18, 2020. The song is a dance-pop and Euro disco song. "911" is about the antipsychotic medication Gaga takes. It was written by Gaga with Madeon, BloodPop, and Justin Tranter, while Madeon, BloodPop, and Benjamin Rice produced it.