Augustana uses golden falsetto, a three-voice harmony and wash of acoustic guitars to make Fleetwood Mac's "Dreams" its own.

The duo’s 1973 album “Buckingham Nicks” prefigured their work with Fleetwood Mac but was lost in the streaming era. That could change Sept. 19.

Fleetwood Mac's "Dreams" hit no. 1 in the United states on June 18, 1977. And it's still one of their most beloved songs today.