The public outings came less than a week after a rep for Lady Gaga confirmed to PEOPLE that she and Christian Carino have ended their engagement

By Maria Pasquini and Melody Chiu
February 24, 2019 12:45 PM
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Lady Gaga had a busy social schedule on Friday!

The Academy Award-nominated star, 32, attended the Creative Artists Agency’s pre-Oscars party on Friday night, arriving with her A Star is Born costar Bradley Cooper.

Held at the San Vicente Bungalows in West Hollywood, the Heineken-sponsored bash was also attended by numerous celebrities, including Jennifer Aniston, Katy Perry, Taylor Swift and Joe Alwyn.

During the celebration, Gaga and Cooper, 44, were spotted sharing a toast together with fellow guests Leonardo DiCaprio and Mick Jagger.

An onlooker tells PEOPLE that Gaga, Cooper, DiCaprio and Jagger spent over an hour together at the party, hanging out and having a great time chatting on a corner couch. Throughout the course of the evening, different stars would rotate in to spend time with the group, including Glenn Close and Melissa McCarthy.

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Credit: Matteo Chinellato/NurPhoto/Getty Images

Meanwhile, Swift and boyfriend Alwyn didn’t leave each other’s side. The onlooker says the couple was adorable as they held court with Ellie Goulding, Ciara and Russell Wilson.

Earlier that night, Gaga was spotted at a private dinner with fellow guests including DiCaprio, 44, and Jagger, 75, at Nobu on La Cienega Boulevard.

The public outings came less than a week after a rep for Gaga exclusively confirmed to PEOPLE that she and Christian Carino, a talent agent for CAA, have ended their engagement.

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Bradley Cooper and Lady Gaga
| Credit: VINCENZO PINTO/AFP/Getty

Days before the news broke on Tuesday, Gaga was on vacation in Cabo San Lucas, Mexico, where she seemed to be in a “gloomy” mood, a source previously told PEOPLE.

The source said Gaga was on a luxurious six-day vacation with friends for Valentine’s Day, including her childhood best friend Bo O’Connor. The singer left Cabo on Monday, one day before news of her split was revealed.

While “it seemed like the most perfect vacation,” the source told PEOPLE that “you could tell everything was not great with Gaga.”

“She seemed a bit gloomy and low energy. On previous vacations, she has had much more energy and looked happier. It was obvious that she was going through something,” the source continued.

25th Annual Screen Actors Guild Awards - Inside
Lady Gaga and Christian Carino
| Credit: Kevin Mazur/Getty Images for Turner

Gaga’s rep confirmed to PEOPLE on Tuesday that she and Carino ended their engagement.

“It just didn’t work out. Relationships sometimes end,” a source told PEOPLE, adding that the pair split “a bit ago” and “there’s no long dramatic story.”

“Their friends knew they weren’t going to work out in the long run,” another source told PEOPLE. “It always seemed Christian was more into the relationship than Gaga was.”

RELATED VIDEO:Lady Gaga and Fiancé Christian Carino End Engagement

Speculation began that the couple was taking time apart when eagle-eyed fans noticed that Gaga was not wearing her engagement ring at the Grammy Awards on Feb. 10. Gaga also did not thank the talent agent in her acceptance speech after her song “Shallow” won the best pop duo or group performance prize.

Additionally, Carino, 49, did not attend the Grammys, even though Gaga had brought her former fiancé as her date to other events this awards season, including the Screen Actors Guild Awards and the Golden Globes, as she’s made the rounds accepting trophies for A Star Is Born.

The 2019 InStyle And Warner Bros. 76th Annual Golden Globe Awards Post-Party - Inside
Lady Gaga and Christian Carino
| Credit: Kevin Mazur/Getty

Cooper and Gaga are both up for best acting awards at the Oscars, and the movie is also nominated for Best Picture, Best Original Song and Best Adapted Screenplay.

The pair will also take to the stage for a live performance of “Shallow.”

The 91st Academy Awards are broadcasting live from Los Angeles on Sunday, Feb. 24 at 8:00 p.m. ET/5:00 p.m. PT on ABC.