After the Oscars, there are the parties: the Governors Ball, where winners grab dinner while their trophies are engraved; the ones hosted by movie studios and Netflix; the Vanity Fair bash (which, The New York Times reported this week, has lost its lustre); and the cool-kids-only affair hosted for a second year by Jay-Z and Beyoncé.

But those looking for old-school debauchery head to the Coldwater Canyon home of Madonna’s manager, Guy Oseary, for an ­afterparty now in its 12th year.

“You look around, and you’re blinded by fame. It’s the people who aren’t famous who stick out,” said one attendee. “Everyone dances, everyone gets loaded. It’s the one party Leo [DiCaprio] says he actually looks forward to every year.”

Stars who have made the guest list — which is planned and approved by co-host Madonna herself — include Oprah, Taylor Swift, Miley Cyrus, Julia Roberts (who wore Converse sneakers to be more comfortable on the dance floor), Tom Brady and Gisele Bündchen, Jack Nicholson, Diane von Furstenberg, Bradley Cooper, Ryan Gosling, Emma Stone and Lady Gaga. While DiCaprio regularly brings his mom as his red-carpet Oscars date, Page Six reported that he switched over to then-girlfriend Toni Garrn for the 2014 party. That same year, Madonna’s ex Sean Penn was spotted making out with new girlfriend Charlize Theron on the dance floor.

Photos are not allowed, and there is a full-on gag order for all guests, party planners, caterers, set builders, etc. Madonna is known to stay on the dance floor for hours (sometimes on her own, sometimes with her kids Lourdes and Rocco). Paul McCartney has jammed with members of the Rolling Stones, and last year Cardi B performed. Penélope Cruz once showed up sporting a mustache, while her husband Javier Bardem wore a feather boa. And the drunkenness is legendary.

British actor Sam Claflin — now said to be in the running to be the next James Bond — told Elle he spilled a glass of wine on Derek Hough and puked on Oseary’s porch.

Jennifer Lawrence has admitted she did the same on his porch in 2013, the year she won for “Silver Linings Playbook.” The next year, Eddie Redmayne continued the tradition after he won for “The Theory of Everything.”

Someone who was there recalled to The Post, “He was dancing in a circle around his Oscar” while Mark Ronson DJ’ed.

“They’ve learned how to deal with it,” revealed one guest who found himself puking as well. “They give you stuff to sober up, and clean it all up very fast.”

Added a second guest, “The night owls love that it doesn’t get going till 2:30 a.m. And by the time you’re really wasted, there’s a major carb breakfast.” In 2017, there were Egg McMuffins from McDonald’s. “I didn’t see Madonna digging in, though,” the second guest said.

It all started when the writer’s strike of 2008 caused the cancellation of the then-top draw Vanity Fair party. Madonna, ­Oseary and Demi Moore decided to fill the gap with a late, late super-private party.

Read full article at PageSix