As per AL.com:
Christine McVie, the British-born Fleetwood Mac vocalist, songwriter and keyboard player whose cool, soulful contralto helped define such classics as “You Make Loving Fun,” “Everywhere” and “Don’t Stop,” has died at age 79.
Her death was announced Wednesday on the band’s social media accounts. No cause of death or other details were immediately provided, but a family statement said she “passed away peacefully at hospital this morning” with family around her after a “short illness.”
While studying at the Moseley School of Art, she befriended various members of Britain’s emerging blues scene and, in her 20s, joined the band Chicken Shack as a singer and piano player. Among the rival bands she admired was Fleetwood Mac, which then featured the talents of blues guitarist Peter Green along with the rhythm section of Fleetwood and McVie. By 1970, she had joined the group and married John McVie.