Susan Kay "Suzi" Quatro,  (born 3 June 1950) is a British-based American singer-songwriter, bass guitar player, and actor. She is the first female bass player to become a major rock star. This broke a barrier to women's participation in rock music.
 
In the 1970s Quatro scored a string of hit singles that found greater success in Europe and Australia than in her homeland. But, following a recurring role as a female bass player on the popular American sitcom Happy Days, her duet "Stumblin' In" with Chris Norman reached number 4 in the USA in 1979.
 
Between 1973 and 1980 Quatro was awarded six Bravo Ottos.
 
In 2010 she was voted into the Michigan Rock and Roll Legends online Hall of Fame. Quatro has sold over 50 million albums and continues to perform live, worldwide. Her most recent album was released in 2011 and she also continues to present new radio programmes.