Taylor Swift “danced the night away” at CAA’s pre-Oscars party on Friday night, while Tiffany Haddish and Donald Glover had a freestyle rap battle and sang karaoke tunes backed by a live band.

The power agency’s party at the exclusive San Vicente Bungalows was also attended by guests Leonardo DiCaprio, Hailey Bieber, Elon Musk, Sacha Baron Cohen, Al Pacino and Chris Pine.

Sources told Page Six that Swift attended with boyfriend Joe Alwyn, as well as Andrew Garfield and Zoë Kravitz.

Haddish – who was rocking short blond hair, a glamorous black gown and sparkling diamond necklace – wowed the crowd in the venue’s theater with a dramatic rendition of Tina Turner’s “Proud Mary.”

Glover also crooned tunes before the two stars wound up in a freestyle rap battle.

The “Atlanta” star – aka rapper Childish Gambino – hit Haddish with the lines, “And I just don’t care/She’s on stage with the white blond hair,” to which quick-witted comedian Haddish fired back, “And I ain’t got no motherf–kin’ underwear!” according to a clip posted to social media.

Said a source: “Tiffany Haddish and Donald Glover had the theater packed performing karaoke to a live band.”

Also spotted at the CAA party, we hear, were J.J. Abrams, Denis Villeneuve, “Squid Game” star HoYeon Jung, Regé-Jean Page, Trevor Noah, Taika Waititi, Rita Ora, Winnie Harlow, Ron Howard, Gayle King, Savannah Guthrie, Sebastian Stan, Simu Liu, Zooey Deschanel, Jonathan Scott and more.

Meanwhile, Hollywood agency WME opted for a smaller affair this year – an intimate dinner with a few tables at Craig’s on Friday night for the agency’s nominees.

Sources said that Maggie Gyllenhaal, Kristen Stewart, Javier Bardem and “King Richard” director Reinaldo Marcus Green each presided over a table towards the back of the celebrity hot spot.

Well-wishers included Warner Bros. studio boss Toby Emmerich, James Bond franchise producer Barbara Broccoli, “Don’t Look Up” producer Kevin Messick, actress-producer Colleen Camp and WME partner Elyse Scherz (who reps Gyllenhaal, Stewart and Bardem).

Spies said that each table had Polaroid cameras for guests to snap fun pics.

WME previously said it was ditching its annual plans for a big Academy Awards blowout, and announced it would donate $1 million to UNICEF to support families in Ukraine.

Saint Laurent and its creative director Anthony Vaccarello hosted the brand’s first pre-Oscars party this year for a high-fashion crowd with a private dinner at the Los Angeles home of screenwriter Mitch Glazer and “Charlie’s Angels” star Kelly Lynch, spies said.

Guests included Zendaya, Pedro Almodóvar, Troye Sivan, Andie MacDowell, Bill Murray, Dave Franco, Maude Apatow and Amber Valletta. A larger Saint Laurent party then opened up to more guests.

Other fashion brands putting events on ahead of the 2022 Oscars included Chanel and Giorgio Armani, which had a party on Saturday night for Nicole Kidman at its flagship Beverly Hills boutique. Guests included Sophia Loren, Adrien Brody, Karolína Kurková, Miles Teller and others.

On Thursday night, entertainment exec Charles King’s media company Macro hosted its pre-Oscars party at LA’s SoFi Stadium where celebrity DJ D-Nice spun tunes. Guests included Kelly Rowland, “Jeen-Yuhs” co-directors Clarence “Coodie” Simmons and Chike Ozah, Lena Waithe, “Pose” star Michaela Jaé Rodriguez and director Ava DuVernay, plus Nia Long, Karrueche Tran and Essence Atkins.

Macro was behind last year’s Oscar-winning film “Judas and the Black Messiah,” as well as the 2019 Michael B. Jordan film, “Just Mercy.”

In other pre-Oscar events: Women In Film hosted its annual pre-party for attendees including Rita Moreno and Jane Campion. This year’s British nominees were feted with an afternoon tea hosted by LA’s British Consul General Emily Cloke, along with BAFTA North America and the British Film Commission.