Woman causes ‘cuckoo’ scene over The 1975 bassist at ‘SNL’ party

The bass player from red-hot band The 1975 found himself at the center of a rather unseemly early-morning tug of war of sorts between two ladies, Page Six has exclusively learned.

After the band performed on “Saturday Night Live,” we’re told Ross MacDonald hit up two afterparties, where he was quite the hit with the female revelers.

A spy spotted the bearded Brit, 33, making out (or “snogging” as they call it back home) with a new friend at DOM, where they partied as the sun was coming up around 7:30 a.m. Sunday.

But trouble brewed when another woman purposefully approached the pair to extract MacDonald — much to the distaste of his smooching partner.

“[The interloper] came up to him and said, ‘Let’s go!'” before walking away with the musician.

“And then the [maker out] was really loud and was like, ‘What are you doing?’ and was following them and saying all this weird s-t-. The sun was out! It was cuckoo,” said our spy.

And well she might. It sounds like she’d put the work in to bag her Brit bassist.

We’re told that earlier in the evening, she had been “dancing and flipping her hair all around.”

“There were quite a few women interested in talking to him,” said one person who partied at the Park Avenue South speakeasy.

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Earlier that night, The 1975 partied uptown at Hutong with some “SNL” cast members and the evening’s host, Jenna Ortega, before the extremely late after-afterparty at DOM.

We’re told Ortega, 20, was flanked by security and “was in and out” of the pricey Midtown dim sum spot.

“She ate and left out of a side door,” a source, who attended the late-night dinner, told us.

Lorne Michaels held court at a Hutong table with former “SNL” star Fred Armisen, we’re told. Meanwhile, Ego Nwodim shimmied her way out of the spot, “dancing in the courtyard with friends” at the end, our source said.