The term 'Bad Reputation Singer' refers to the American rock singer Joan Jett, who is best known for her hit song 'I Love Rock 'n' Roll'. Her stage name is simply Jett, which is a four-letter word. She is also known as Joan Jett, an eight-letter word. Joan Jett is a pioneering female rock musician who has been active since the 1970s and is still performing today. She is a member of the Rock and Roll Hall of Fame and has sold over 10 million albums worldwide.