The reunion resulted in a revival tour that arrives for a sold-out concert at the MGM Grand Garden Arena Saturday night.

Mac's reunion marks the 20th anniversary of their most successful album, "Rumours," which to date has sold more than 25 million copies and ranked No. 1 on the U.S. charts for 31 weeks in 1977.

What does "Rumours" have to do with "The Dance?"

"The Dance" contains the four hit songs that made "Rumours" a success: "Dreams," "You Make Loving Fun," "Go Your Own Way" and "Don't Stop." "The Dance" also contains nine other past hits and four new songs -- "Temporary One," "Sweet Girl," "Bleed To Love Her" and "My Little Demon."

With this collection of hit songs, the album debuted earlier this year at No. 1 on the Billboard album chart.

The quartet has always known that they would reunite one day, but after being apart for so long, "it was an odd feeling, being back together, but it was obvious we were having fun," said Mac member Christine McVie.

Mick Fleetwood remembered when he and fellow band Lindsey Buckingham started compiling the songs for the album in the summer of '96. "We started working together on some of (Buckingham's) songs and immediately sparked off each other," Fleetwood said. "It's like learning to ride a bike; once you've got it, you never forget."

With separate lives and careers, every year that Fleetwood Mac was apart slimmed the chance of them reuniting, but it took, if not an act of God, then an act of the President to make it happen.

It was a request from President Bill Clinton for the band to play "Don't Stop" as his campaign song, which they also performed at his 1992 Inaugural Ball. It was that performance that sparked the idea of reuniting for another Mac attack.

"This is all very exciting, but at the same time, very familiar," mused Nicks. "When we get together, something amazing happens. It takes on a life of its own."