Watch Alanis Morissette Duet with Demi Lovato at American Music Awards - You Oughta Know!

Alanis Morissette takes the stage with Demi Lovato while performing “You Oughta Know: at the 2015 American Music Awards held at the Microsoft Theater on Sunday (November 22) in Los Angeles. The 41-year-old singer is currently celebrating the 20th anniversary of her iconic album Jagged Little Pill! PHOTOS: Check out the latest pics of Demi