Alanis Nadine Morissette ( ə-LAN-iss MORR-iss-ET; born June 1, 1974) is a Canadian and American singer, songwriter, and musician. She began her music career in Canada in the early 1990s with two dance-pop albums. In 1995, she released the alternative rock album Jagged Little Pill, which sold more than 33 million copies globally and propelled her to become a cultural phenomenon. Morissette won the 1996 Grammy Award for Album of the Year among other accolades, and the album was adapted into a 2018 rock musical. The Rock and Roll Hall of Fame has Jagged Little Pill on their 200 Definitive Albums list, and it appeared on various editions of Rolling Stone's "500 Greatest Albums of All Time" guide. Its lead single, "You Oughta Know", was also included on Rolling Stone's "500 Greatest Songs of All Time" list.

Morissette followed up with the highly anticipated experimental album Supposed Former Infatuation Junkie (1998). Her fifth album, Under Rug Swept (2002), marked the first time Morissette was the sole producer of an entire album. Taking further creative control and production duties, Morissette continued her career with subsequent studio albums, including So-Called Chaos (2004), Flavors of Entanglement (2008), Havoc and Bright Lights (2012), Such Pretty Forks in the Road (2020), and The Storm Before the Calm (2022). Her first three internationally released studio albums topped the Billboard 200 albums chart, and her next four albums peaked within the Top 20.

Morissette has sold more than 75 million records worldwide. She has won a Brit Award, seven Grammy Awards, fourteen Juno Awards, and has been nominated or two Golden Globe Awards and a Tony Award. Her singles "You Oughta Know", "Hand in My Pocket", "Ironic", "You Learn", "Head Over Feet", "Uninvited", "Thank U", and "Hands Clean", reached top 40 in major charts around the world. She also holds the record for the most No. 1s on the weekly Billboard Alternative Songs chart among female soloists, group leaders, or duo members. Rolling Stone described her as the "queen of alt-rock angst", and VH1 ranked her the 53rd-greatest woman in rock and roll. In 2005, she was inducted into Canada's Walk of Fame.