Lady Gaga partied pantsless at a post-Grammys bash — and what other stars did after the show

The Grammys ceremony is a long affair — the telecast showed just nine of the 84 awards handed out — but that doesn’t mean it’s the end of the evening for everyone. Lady Gaga, for one, was ready to let loose after adding three new Grammys to her collection.

The singer and actress shared a video capturing her mood after “winning 3 Grammys, a BAFTA” — referring to the EE British Academy Film Awards, which also took place last night — “and finally meeting [Cardi B] all on a Sunday evening” — and she was ready to party. She ditched her Celine by Hedi Slimane metallic dress for lacy undergarments, which she rocked at Mark Ronson’s Club Heartbreak after-party.

Gaga played music for the masses with Ronson, also a winner for his collaboration with Silk City & Dua Lipa, and chatted up Baz Luhrmann, planting a kiss on the director’s cheek. Katy Perry was there too, but the women didn’t pose together. No surprise after the Kesha drama.

It was kind of no wonder that Perry — who had an exhausting weekend between performing, attending a slew of Grammys events and going to Jennifer Aniston’s birthday party with her live-in love, Orlando Bloom — ended her evening post after-party just glazing out on social media, looking at funny takes on her Balmain dress. The paint roller, which she shared, is just one, and many thought she looked like a Sno Ball, among other pastries.

Here’s what some other celebs did after the show…

Alicia Keys not only hosted the Grammys — and gave a killer performance playing two pianos at once — but also she dropped a surprise single, “Raise a Man,” after the show.

While Cardi B did some early celebrating, she said she wasn’t staying out late because her head hurt and she wanted to get home to Kulture.

Not long after, she posted a video of her baby girl — with officially on-again husband Offset, who she tongued earlier on the red carpet — saying mama for the first time.

Chrissy Teigen didn’t go to the Grammys — and instead gave a “not-going-to-the-grammys makeup tutorial” before hanging out with Modern Family’s Jesse Tyler Ferguson at home — but she ended the night with someone who did. The Good Place‘s Jameela Jamil went from the Grammys to Teigen’s couch to watch some of the telecast, eat ice cream, play around with filters and hang out.

Dua Lipa, who won Grammys for Best New Artist and Best Dance Recording, was toasted at a dinner party.

Kelsea Ballerini didn’t win at the Grammys, but with some bubbly and Girl Scout cookies in bed, it was a party. “Chalk this up as a win,” the country-pop singer wrote on Twitter.

It was an earlyish night for Team J-Rod. He wrote that he had to get up for an 8 a.m. meeting — and we’re sure she was tuckered out after her Motown tribute and just wearing that hat.

Heidi Klum went home to FaceTime her fiancé, Tom Kaulitz.

And while Ariana Grande didn’t go to the show either, after a spat with producers, she apparently hung on every win (like her own) and loss (Mac Miller’s), tweeting throughout the telecast. After clarifying that one of her tweets wasn’t meant to dis Cardi B for besting her late boyfriend, she went to bed — full glam — with her dog Myron in her arms, but said thanks to her fans before she drifted to sleep.

“It’s me your tiny, highly emotional, italian, and now grammy award winning friend,” she captioned the video. “i’m super tarnished lol. but super grateful. thank u for everything. myron is in my arms n he says hi as well.”

Read more from Yahoo Entertainment:

• Grammys 2019 red carpet arrivals: Cardi B, Lady Gaga and more

• Grammy Awards 2019: Complete winners list

• Grammy nominee Linda Perry talks lack of respect, representation for female producers: ‘If I were Rick Rubin, they wouldn’t have done that’