Roberta Joan Mitchell is a Canadian and American singer-songwriter, multi-instrumentalist, and painter. As one of the most influential singer-songwriters to emerge from the 1960s folk music circuit, Mitchell became known for her personal lyrics and unconventional compositions, which grew to incorporate elements of pop, jazz, rock, and other genres. Among her accolades are eleven Grammy Awards, and induction into the Rock and Roll Hall of Fame in 1997. Rolling Stone, in 2002, named her "one of the greatest songwriters ever", and AllMusic, in a 2011 biography, stated "Joni Mitchell may stand as the most important and influential female recording artist of the late 20th century."