Tickets for select concerts on Fleetwood Mac's 2013 North American tour have gone on sale.

Nicks says that now, however, she and Buckingham are fully committed to Fleetwood Mac and are looking forward to hitting the road with the group.

The singer says she and her band mates have yet to decide on a set list for the trek, pointing out that they intend to pick the tunes during rehearsals, which will begin in the middle of January.

Noting that Fleetwood Mac has "10, 11, 12 big hit songs that we know our audience wants to hear," Nicks notes that the band members still have to put their heads together on "the other 12 songs, 'cause we do about 21, 22 songs in two hours and a half."

The singer says at the beginning of rehearsals, the band members each bring in their own lists of additional tunes they'd like to perform, and "we put all these songs up on a big blackboard."

She adds, "We start going…'You know, this one is really gonna work,' 'this one isn't gonna work,' and it's interesting also because, like, in the year 2013, one song might work really beautifully that didn't work in 2009 or that might not have worked in 2003.  So, you never kind of know."

They have 3 new tracks laid down so far they'll sprinkle in as well.