Married to Fleetwood Mac co-founder John at the time, Christine McVie was officially enlisted to provide keyboards and vocals on August 1, 1970. She would spend nearly three decades in the legendary group before retiring in 1998. Now 70 years old, Christine combined her song writing and vocal talents with Lindsey Buckingham and Stevie Nicks to transform the British blues band into rock super stardom. She also has three solo albums to her credit. Earlier this year, she joined former bandmates John McVie and Mick Fleetwood on stage in Hawaii, her first concert performance in 15 years