Members of Fleetwood Mac, from left, Peter Green; John McVie; Stevie Nicks; Christine McVie; Mick Fleetwood; and Lindsey Buckingham hold their awards after the group was inducted into the Rock and Roll Hall of Fame in New York on Jan. 12, 1998. Christine McVie died at the age of 79 on Wednesday, according to the band. Credit: Adam Nadel / AP

NEW YORK — 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,” died Wednesday at age 79.

Her death was announced 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.”

“She was truly one-of-a-kind, special and talented beyond measure,” the band’s statement reads in part.

McVie was a steady presence and personality in a band known for its frequent lineup changes and volatile personalities — notably fellow singer-songwriters Stevie Nicks and Lindsey Buckingham.

During its peak commercial years, from 1975-80, the band sold tens of millions of records and was an ongoing source of fascination for fans as it transformed personal battles into melodic, compelling songs. McVie herself had been married to bassist John McVie, and their breakup — along with the split of Nicks and Buckingham — was famously documented on the 1977 release “Rumours,” among the bestselling albums of all time.

Fleetwood Mac, co-founded by drummer Mick Fleetwood in 1967, was inducted into the Rock and Roll Hall of Fame in 1998. The group’s many other hit singles included “Dreams,” “Go Your Own Way” and “Little Lies.”