Joan Jett (born Joan Marie Larkin September 22, 1958, in Wynnewood, Pennsylvania) is an American rock guitarist, singer, songwriter, producer and actress.

She is best known for her hit single "I Love Rock N' Roll", which was #1 on the Billboard charts from March 20 to May 1, 1982, as well as for her other popular recordings including "Crimson and Clover", "Do You Wanna Touch Me", "Light of Day", "Love is All Around", "Bad Reputation," "I Hate Myself for Loving You," and "Little Liar."

Jett has a mezzo-soprano vocal range. Her musical and song-writing approach is heavily influenced by the hard-edged, hard beat-driven rhythms common to many rock bands of her native Philadelphia, often featuring lyrics surrounding themes of lost love, criticisms of insincerity, the struggles and resolution of the American working class, and the quest for authenticity.

In June 2006, Joan Jett released a new album, Sinner, on Blackheart Records, her own label. To support the album, the band appeared on the 2006 Warped Tour, and embarked on a Fall 2006 tour with Eagles of Death Metal. Various other bands like Antigone Rising, Valient Thorr, The Vacancies, Throw Rag and Riverboat Gamblers were to have joined the tour for a handful of dates each.

A Joan Jett video with Paul, Paul Jr. and Mikey Teutul of the Learning Channel show American Chopper aired on January 14, 2007. The making of that video was presented in a segment of the show that aired on The Learning Channel on February 22, 2007.

Jett sang a duet with Chase Noles on "Tearstained Letters," a song on the Heart Attacks' 2006 album, Hellbound and Heartless.

In late June 2007, Joan Jett and the Blackhearts performed at Dolphin Stadium in Miami, following a Florida Marlins baseball game.

Joan Jett and the Blackhearts headlined the Albuquerque, New Mexico Freedom Fourth celebration on July 4, 2007, with an estimated crowd of 65,000 in attendance at the annual outdoor event.

In November 2007, Jett and the Blackhearts appeared with Motörhead and Alice Cooper in a UK arena tour.

Jett is to executive produce the 2009 upcoming film Neon Angels, which chronicles the Runaways' career. Floria Sigismondi, who has also directed videos for Marilyn Manson, the White Stripes and David Bowie, is to write and direct.

Jett opened eight American shows on Aerosmith's 2007 World Tour.

Following The Dave Clark Five's induction to the Rock and Roll Hall of Fame, on March 10, 2008, Jett, as part of the ceremony, closed the program with a performance of the DC5's 1964 hit "Bits and Pieces". She was introduced by actor Tom Hanks, who said, "Ladies and gentlemen — at one time, if I had been lucky, one of the most beautiful 'Mrs. Tom Hanks' you can imagine, but I'm not complainin' — Joan Jett!"

Joan Jett and the Blackhearts appeared on several dates of the True Colors Tour 2008. in the summer of 2008. She opened for Def Leppard on August

In 2009 the production of the movie "The Runaways" will begin filming around Twilight's Kristen Stewart schedule of filming the sequel "New Moon" then "Eclipse". Kristen is set to play Joan Jett.