ET riffs with Fleetwood Mac stars Stevie Nicks and Lindsey Buckingham, who give us the 411 on the Mac's highly anticipated "Unleashed" reunion tour.

One unique aspect about the tour is that the group is not releasing a new album but instead performing songs that they enjoy singing.

"We are not supporting a new album," Lindsey says. "We thought it would be very appropriate to go in and really just look at the body of work that we have and put together something that we would enjoy playing. And not put ourselves in the pressure of trying to redefine ourselves with new material."

It's been five years since the legendary supergroup last rocked out on the road, and their 2009 "Unleashed" tour coincides with the reissue of their signature 1977 album, Rumours -- one of the best-selling albums of all time, featuring hits such as "Don't Stop," "Go Your Own Way" and "You Make Loving Fun."

Stevie tells ET that the theme of the tour is to bring back the songs Fleetwood Mac fans know and love.

"This is our life," she says. "These are our beautiful songs that we worked so hard on, that you love. And for this one time, we're going to play all this for you."

Click the video for more with Stevie and Lindsey!