Christine McVie

Handwritten lyrics, musical instruments and one-of-a-kind memorabilia are among the 650 pieces up for bid.

Without late bandmate Christine McVie, singer says, "We really can’t go any further with this."

Track comes from a new reissue, while Mick Fleetwood pays tribute to his late bandmate with a new cover.

Singer paid tribute to late bandmate with emotional rendition of "Landslide."

Fleetwood Mac drummer was joined by Sheryl Crow and Bonnie Raitt for a rendition of "Songbird."

"She was truly one-of-a-kind, special and talented beyond measure," the band wrote in a statement.

"We continue to hope for the best," she says.

She says she’s getting “too old” and thinks Stevie Nicks and John McVie would refuse.

Fleetwood Mac bandmates guest on Finn’s fundraising song “Find Your Way Back Home.”

There have been more than 40 of these outside projects, which deepen and add to the band's legacy.