NEW YORK - Fleetwood Mac is heading back on the road, and that means the top-selling group will release new music, sort of.

On its 34-city North American tour, which begins April 4 in Columbus, Ohio, and plays the Wells Fargo Center in Philadelphia on April 6, the band will perform two new songs, and that could mean a new album will follow. Or not.

Stevie Nicks recently sang on tracks that Lindsey Buckingham, Mick Fleetwood, and John McVie worked on, calling the sessions "great." But Nicks also said she was not sure where the band fits in today's music industry.

"Whether or not we're going to do any more [songs], we don't know because we're so completely bummed out with the state of the music industry and the fact that nobody even wants a full record," she said. "Everybody wants two songs, so we're going to give them two songs."

Nicks said depending on the response to the new tracks, which Buckingham calls "the most Fleetwood Mac-y stuff . . . in a long time," more material could follow.

"Maybe we'll get an EP out of it or something," Buckingham said.

Nicks will continue to record solo albums, though. The group is celebrating the 35th anniversary of its best-selling Rumours album, which has moved some 20 million units in the United States. Nicks knows that's not possible again, despite the success of Adele's 21, which has sold 10 million copies in America in less than two years.

"This is Adele's Rumours," Nicks said. "She had a baby, she's going to take a year off to take care of her baby - that's why I never had any kids. She's going to go back and start writing again, you never know what the next record's going to be. Is it going to sell 10 million records? You don't know," she said.

Buckingham said he initially wanted to record a new album, but Nicks "wasn't too into that." But the guitarist and singer knows new music isn't a priority for the band's fans.

"It wouldn't matter if they didn't hear anything new. In a way, there's a freedom to that - it becomes not what you got, but what you do with what you got. Part of the challenge of this tour is figuring out a presentation that has some twists and turns to it without having a full album," he said.

Fleetwood Mac, formed in 1967, last released an album in 2003, though the band hit the road in 2009. Nicks, 64, and Buckingham, 63 - who originally joined the band in 1974 as a couple - both released solo albums and toured last year. Buckingham had suggested Fleetwood Mac tour last year, but said getting everyone to agree was tough.

"If you look at Fleetwood Mac as a group, you can make the case of saying we're a bunch of individuals who don't necessarily belong in the same group together, but it's the synergy of that that makes us so good. But it also makes the politics a little more tenuous," he said. "You can say that not only can it be a political minefield, someone's always causing trouble, right? I caused trouble for years, so I can't point any fingers."

The tour also includes New York, Chicago, Boston, Las Vegas, and Los Angeles, and will end June 12 in Detroit.