“Money,” Cyndi Lauper sings, “money changes everything.”

Indeed. So I hear that Crosby, Stills, Nash, AND Neil Young– all of whom hate each other and have publicly slagged one another off– are considering a mega reunion tour.

That’s right. It’s Deja Vu all over again. Why, why, why? Our House is not a very happy house. Nash and Young have been hobbled financially by massive divorce settlements. They each parted from 30 year- plus marriages in the last couple of years.

When would this tour take place? It could be early this summer, but my guess is beginning after Labor Day. Stills has dates booked with ex flame Judy Collins for August. Plus, if they get this right, CSNY could be part of the next Desert Trip at Coachella come October. (Remember, you read that here first.)

They will have to get over all the nasty things they’ve said about each other. But, you know, for the right price, they can have that magic wand from “Men in Black” erase all that. Plenty of acts have toured without speaking to each other off stage. (See: The Police, Simon & Garfunkel, and so on.)

And think of the ancillaries: live album, some kind of video special, pay-for-view, etc. This is the year to do it, too. No one’s getting any younger.

Pop stars Pink and Sia star in a super single released today from legendary hit producers Stargate.

Stargate is really two Norwegian writer-producers named Tor Erik Hermansen and Mikkel Storleer Eriksen. Usually you see the Stargate name in the credits of acts like Beyonce, Rihanna and Katy Perry. They don’t just work with female singers. Stargate claims production credit on all of Coldplay’s “albumn ” A Head Full of Dreams” in 2015.

But now it’s time for them to go out on their own. “Waterfall” is a little repetitive, but it’s catchy. And Pink and Sia are no slouches.

An album is likely.

Has Linkin Park sold out? Their new video is called “Heavy,” and it’s a big shmaltzy rock anthem featuring 22 year old singer Kiiara and Mercedes product placement. The new video has a big tie in to Mercedes, which may irk long time alt-rock fans for whom the car shown represents two or three years’ income.

So far radio has had a tepid response to it. But the video should give it a push.

Kiiara, who gets to belt it out on the single, is signed to Atlantic Records. But her first two songs weren’t very good. Now her career will get a huge boost as “Heavy” is radio-ready and the video couldn’t be more directed to the teen audience.

Linkin Park’s new album is called “One More Light” and it hits on May 19th.

Warner Bros. Records needs a hit: The group is one of their few ties to chart success other than Lukas Graham.

But look: there’s life there yet. WBR is releasing the new Sheryl Crow album. And they do have a lot of potential with a great band called The Head and the Heart.

Pop, pop muzik:

Ed Sheeran’s third and best album is called “Divide.” But it hasn’t divided fans or critics. “Divide” is looking to surpass 400,000 in sales by Friday in the US, and 500K in the UK. Sheeran took a year off to make “Divide,” and you can hear the freshness. He’s got two hit singles at the top of the charts here, too, as well.

What makes “Divide” unique is that the songs are solid, and there are no guest stars. It’s just Ed Sheeran, who looks like Van Morrison’s unknown son but is heading more and more into James Taylor territory. One track on there, called “Perfect,” is pretty perfect. Sheeran’s songs do recall older ones– his “Thinking Out Loud” really referenced Marvin Gaye. On “Divide” it doesn’t sound so obvious.

Meanwhile, Drake is apparently coming to crush Ed’s second week on the charts. Hitsdailydouble reported that Drake is about to drop a surprise album. I’ve confirmed that it’s coming, and may be called “More Life.” Drake is very prolific, with a new album (sometimes two) every year. His last, “Views,” came out in April 2016. That album was propelled by “Hotline Bling,” which Drake sampled from a 1973 soul hit called “Why Don’t We Live Together.” Will lightning strike again? We’ll see…

Mariah Carey’s manager, Stella Whatchamacallit, is attacking me in In Touch Weekly today. I am so honored and thrilled. Stella, who is Russian dressing to Mariah’s life of living theater, tells the supermarket tabloid that she could “slay” me (are in Game of Thrones?), and that I’m a “sad” person. So sad!

Stella: “If I wanted to totally slay Roger Friedman, I would. But his stupid column is inaccurate,” Stella promptly fired back, explaining, “He’s totally making up the record label stuff.”

I said that Epic Records was considering dropping Mariah because she forced the single “I Don’t” on them, and it didn’t. The track has disappeared faster than Donald Trump’s original immigration bill. Gone. Stella tells In Touch: “The day his column came out is the day Epic released the song and it got radio ads.” In Touch, however, noted that the single was dropped February 3rd, and my column ran on February 28th.

Anyway, what’s the diff? “I Don’t” is not on any MediaBase charts for radio play in any category. I feel bad about this because I am fond of Mariah. We’ve been pals for years. She needs real management, and a direction. Mariah is almost 50. Recording with Busta Rhymes and DJ Khaled– a mistake, frankly. She has a great voice. It’s time to show it off as an adult. Call up Randy Jackson and get the train back on track, MC!

Stella, if you can find me some radio stations playing “I Don’t,” please tell them to email me at showbiz411@gmail.com.

Check out the cute photo of Mariah and the twins dressed in red for International Women’s Day!