Songfacts®:

• This is a track from Extended Play, Fleetwood Mac's four song disc, their first collection of new tunes since 2003's Say You Will. "I knew we wouldn't have time to cut a new album," Lindsey Buckingham told Rolling Stone. "Stevie [Nicks] was still caught up in her solo thing, but I got John [McVie] and Mick [Fleetwood] over from Hawaii. They played their asses off. It was a great experience."
• Stevie Nicks arrived at the sessions towards the end, and Buckingham presented her with this tune in which the pair harmonize over the latter's twisting guitar and Mick Fleetwood's energetic drumming. "I wrote that song for Stevie," Buckingham told Rolling Stone. "She always had to fight for everything. She was coming off a solo album and was in the process of reintegrating herself mentally in the band, and we're all warriors with a sword in one sort or another. She and I have known each other since high school. So I just wrote, 'Sad Angel have you come to fight the war. We fall to earth together, the crowd calling out for more.'"
• The song reflects on former lovers, Nicks and Buckingham's, complex relationship. "All these years later, we are still writing songs that are dialogues for each other," Buckingham told Rolling Stone. "That was part of the appeal of Rumours, and of the group in general... Of all the things we cut, 'Sad Angel' was, for lack of a better term, the most Fleetwood Mac-y. It was really kind of the best stuff that we have done in a while."