I remember her as Christine Perfect in Chicken Shack. RIP.
I was in my teens when I bought a Best of... Fleetwood Mac cassette which, on Side B, was all Christine Perfect tracks (such as her glorious cover of I'd Rather Go Blind) It took me several months to click that Christine Perfect was Christine McVie Hey, this was 40-odd years ago. I was young, naïve...
I'm not a big fan of the Buckingham-Nicks era of Fleetwood Mac (I'm much more a Peter Green - Danny Kirwan era fan), but she did pen some superb track on Rumours like Songbird and Oh Daddy.