Beck celebrates Bowery Ballroom show with party at the Mulberry, after hanging backstage with Doug Emhoff

After rocking the Bowery Ballroom, Page Six hears that Beck had an intimate after party at sceney spot the Mulberry.

The “Loser” singer performed a solo acoustic show at the Lower East Side institution on Monday, nearly a week after Paul McCartney sent New Yorkers into a frenzy with his surprise concert at the same venue, where up-and-coming acts are often booked.

We hear the former Second Gentleman was among the fans who came out to catch Beck’s show, and a source told Page Six that the “Sexx Laws” star hung out with Doug Emhoff backstage.

Emhoff, who we hear has been a longtime fan of Beck’s for 30 years, attended the concert with his brother-in-law, Tony West.

The duo linked with Beck backstage, where they hung out and discussed his artistry, we hear.

Beck invited them to the afterparty, but the former SG returned to private legal practice last month and had an early morning, according to a source.

Beck, on the other hand, brought the party back to Mulberry, his go-to spot for unwinding after a concert.

He previously jammed with Jon Hamm at the celeb hangout after a concert, we reported.

This time, Beck didn’t get on the mic, but rather “held court in the main room,” a spy told Page Six.

“He could barely get past the entryway from all the people congratulating him,” the spy said.

We’re told Keegan-Michael Key air-drummed in a corner with friends as everyone rocked out.

Mike Kerr from Royal Blood, Adam Greene from the Moldy Peaches and Harper Simon all made the rounds at the afterparty.