Joan Jett and the Blackhearts is an American rock band formed in Los Angeles, California in 1979 as a conjunction of lead musician, singer and songwriter Joan Jett and the backup band. It has undergone many lineup changes since its inception, with founders Jett and producer Kenny Laguna being its only consistent members.

Three albums by Joan Jett and the Blackhearts have been certified platinum or gold. Their hit singles include "Bad Reputation", "Fake Friends", "Good Music", "Light of Day", "Little Liar", "I Hate Myself for Loving You", and the covers "Crimson and Clover", "Do You Wanna Touch Me (Oh Yeah)", "Dirty Deeds", "Everyday People", and "I Love Rock 'n Roll".

In 2015, the lineup consisting of Jett, Laguna, bassist Gary Ryan, drummer Lee Crystal, and guitarist Ricky Byrd were inducted into the Rock and Roll Hall of Fame.