Christine McVie, whose songwriting and signature vocals helped make British-American group Fleetwood Mac one of the best-selling rock bands of all time, died on Wednesday. She was 79.

McVie passed away at a hospital following a short illness, her family said in a statement posted on the singer’s Facebook page.

“We would like everyone to keep Christine in their hearts and remember the life of an incredible human being and a revered musician who was loved universally. RIP Christine McVie,” the family said in the statement.

Fleetwood Mac, in a separate statement, said that there were “no words” to describe the band’s sadness at McVie’s passing. Members of Fleetwood Mac including Stevie Nicks and Mick Fleetwood posted the statement on social media.

See Also:

San Francisco becomes first US city to allow police robots to kill suspects

“She was the best musician anyone could have in their band and the best friend anyone could have in their life,” the band’s statement said. “Individually and together, we cherished Christine deeply and are thankful for the amazing memories we have.”

Read more: Reuters