This is how Roberta Joan became Joni Mitchell... Happy 80th birthday to this music legend!

Joni Mitchell is the small-town girl who made it really big. From humble beginnings where she struggled at school but developed a love and art and music, she is now a multi-award-winning music icon with 10 Grammys to her name. But it wasn't always plain sailing for the 'Both Sides Now' songstress. Read on to find out how Joni overcame tough times in her youth to become an acclaimed singer/songwriter...