"Uninvited" is a song by Canadian-American recording artist and songwriter Alanis Morissette, released as a single from the soundtrack of City of Angels in February 1998, becoming Morissette's first new recording since her international debut album, Jagged Little Pill (1995). Morissette wrote the song and co-produced it with Rob Cavallo. "Uninvited" is driven by four piano notes and builds to an instrumental climax, and haunting atmosphere accompanied by cryptic lyrics.
After the massive success of her breakthrough album, Jagged Little Pill (1995) (which spawned the worldwide hits, "You Oughta Know", "Ironic", "Head over Feet" and "You Learn"), Morissette was considered one of the biggest music stars in the world, and many fans anxiously awaited a follow-up album. That would be Supposed Former Infatuation Junkie, released in November 1998; however, she released "Uninvited" as the lead single from the City of Angels soundtrack prior to that. "Uninvited", was released to American radio stations in March 1998 and was still receiving substantial radio airplay by the following August. An internet and radio leak of "Uninvited" in early March forced Warner Bros. to release the entire soundtrack to radio before it became available in stores. According to a publicity manager for Warner Music Canada, the measure was "an inconvenience" taken to stop radio stations from playing low-quality versions of the song downloaded from the internet.