Joan Jett & the Blackhearts is an American rock band formed in 1979, led by guitarist and singer Joan Jett. The band is known for its influential sound that blends punk rock and hard rock elements. They gained fame with hits like "I Love Rock 'n' Roll," which became a defining anthem of the 1980s. The group has released several albums and continues to perform, maintaining a strong presence in the music industry. Joan Jett is recognized not only for her music but also for her role as a pioneer for women in rock, inspiring many artists across genres.