Alanis Morisette to perform with Demi Lovato at American Music Awards

Alanis Morissette has joined the roster of performers for the 2015 American Music Awards. The singer-songwriter's appearance comes as her hit album Jagged Little Pill is celebrating its 20th anniversary, for which Morissette will team with Demi Lovato for a duet performance of the record's "You Oughta Know."

"You Oughta Know" was released on July 7, 1995 as the third single from Jagged Little Pill. It was co-written by Morissette and producer Glen Ballard, with musical contributions by Dave Navarro and Flea. The angry ode to an ex-lover became a hit with American music fans, who drove it onto four different Billboard charts.

The song was number one on the Modern Rock Chart, number three on the Mainstream Rock Chart, number seven on the Mainstream Top 40 chart and number six on the overall Hot 100 Singles Chart. It also charted in Morissette's native Canada, Australian, Belgium, the Netherlands, New Zealand, and Sweden.

However, the story behind "You Oughta Know" is about as popular as the track itself. Everyone has wanted to know who the ex-boyfriend was that the singer was raging about, though she has stated in interviews that she has no interest in dropping the name. Dave Coulier, the actor and comedian best known for starring in the sitcom "Full House," has said a few times including in an "Oprah" appearance that the song is about him, but we'll likely never know for sure.

More recently, Morissette released her eighth studio album, Havoc and Bright Lights, in 2012. While that was her last record release to date, she has continued to tour, with an "Intimate and Acoustic" tour last summer. She also launched her own podcast earlier this year.

This will be Morissette's first time performing at the American Music Awards, but she's been nominated for a trophy four times over her career: for Favorite Pop/Rock Female in 1996 and 1997, Favorite Pop/Rock New Artist in 1996 and Favorite Pop/Rock Album in 1997. She won both Favorite Pop/Rock Female and Favorite Pop/Rock Album in 1997; you can watch her acceptance speech here.

Previously announced performers joining Morrisette this weekend include Nick Jonas, Demi Lovato, Walk the Moon, Justin Bieber, Selena Gomez, Carrie Underwood, and 5 Seconds of Summer.

The 2015 American Music Awards will take place this Sunday, Nov. 22 at the Microsoft Theater in Los Angeles. Fans looking to score tickets should visit the event page at AXS.

For more on Alanis Morissette, visit her artist page at AXS.