MAC IS BACK

THE MAC IS BACK. The “Go Your Own Way” hitmakers (inset) will perform at the Classic West festival at Dodger Stadium in Los Angeles this weekend, and Classic East at Citi Field in Queens next weekend. And Christine McVie expects less drama – and fewer drugs – this time around.

According to the 74-year-old singer,

Fleetwood Mac’s hard partying ways in the ’70s were less about pursuing hedonistic pleasure than escaping the band’s grinding interpersonal tension.

“I think we probably needed a little something to cheer us up,” says McVie. While recording their mega-smash 1977 album “Rumours,” McVie was going through a divorce with husband John and band members Stevie Nicks and Lindsey Buckingham were involved in a tumultuous romance.

“It was a trauma in the studio with two breaking-up couples trying to finish this record,” she told Confidential. “It was a nightmare.”

The tension is a thing of the past and so is the excess, says McVie, who rejoined the group in 2013 after 15 years away.

“At my age now, of course, that thing is completely out of the question,” she says. “I’m pretty much a nun now.”

McVie and Buckingham recently finished a duets album, putting Mac fans into a froth when they brought in

Mick Fleetwood and John McVie to play on a few tracks. That’s four-fifths of the classic lineup (minus Nicks), which hasn’t recorded together since “Tango in the Night” in 1987.

McVie says there was no plan to stage a reunion.

“There was no aim to make a record – Fleetwood Mac or otherwise,” she says. “It was literally Lindsay and I going into the studio to work on my songs , and it just so happened that John and Mick were in town, and we thought, let’s get them to play rhythm section for us.”

McVie told a British tabloid last month that she would “love to think it’s possible” the entire band will record again.