Lady Gagahad a busy social schedule on Friday!

TheAcademy Award-nominated star, 32, attended the Creative Artists Agency’s pre-Oscars party on Friday night, arriving with herA Star is BorncostarBradley Cooper.

During the celebration, Gaga and Cooper, 44, were spotted sharing a toast together with fellow guestsLeonardo DiCaprioandMick 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, includingGlenn CloseandMelissa McCarthy.

Matteo Chinellato/NurPhoto/Getty Images

lady-gaga

Meanwhile, Swift and boyfriend Alwyn didn’t leave each other’s side. The onlooker says the couple was adorable as they held court withEllie Goulding,CiaraandRussell 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 andChristian Carino, a talent agent for CAA, haveended their engagement.

VINCENZO PINTO/AFP/Getty

AFP_18Q7XT

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 sourcepreviously told PEOPLE.

The source said Gaga was on a luxurious six-day vacation with friends for Valentine’s Day, including her childhood best friendBo 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.

Lady Gaga and Christian Carino.Kevin Mazur/Getty Images for Turner

25th Annual Screen Actors Guild Awards - Inside

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 sourcetold PEOPLE. “It always seemed Christian was more into the relationship than Gaga was.”

RELATED VIDEO:Lady Gagaand 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 theGrammy Awardson 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 theScreen Actors Guild Awardsand theGolden Globes, as she’s made the rounds accepting trophies forA Star Is Born.

Christian Carino and Lady Gaga.Kevin Mazur/Getty

The 2019 InStyle And Warner Bros. 76th Annual Golden Globe Awards Post-Party - Inside

Cooper and Gaga are both up for best acting awards atthe 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 alive performanceof “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.

source: people.com