Adele Looks 'Almost Unrecognizable' in Waist-Cinching Leopard Dress at Oscars Afterparty

Hellooooooo, Adele!

While Adele didn’t hit the 2020 Oscars red carpet Sunday night, the powerhouse singer did dazzle on the afterparty circuit wearing a beaded leopard dress to Guy Oseary’s Oscars bash, which was also attended by Jennifer Lopez, Alex Rodriguez, Kim Kardashian, Kanye West and more A-listers.

“She looked like herself but also so different — beautiful but almost unrecognizable,” a source tells PEOPLE of the superstar, who has been following a strict diet and fitness routine as part of living a healthy lifestyle.

Kinga Rusin/Instagram
Kinga Rusin/Instagram

Polish TV host and personality Kinga Rusin shared an Instagram photo of herself posing alongside Adele, giving fans a good look at the star’s heavily embellished animal-print gown – and revealing in the caption that what you can’t see is that Adele is wearing the slippers given out at the party entrance. “I talked to Adele about … shoes,” she wrote. “Everyone gets slippers at the entrance … I had a conversation with Adele about my high heels (she urged me [to put] on the slippers she had on her feet).”

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A second insider says that the megastar, “looked striking and so tall,” and “had a tiny waist and beautiful hourglass figure in a beaded leopard dress.”

“She took her shoes off and danced on the dance floor,” the insider adds. “She sat with Nicole Richie and was chatting for a while.”

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Na wczorajszej prywatnej imprezie ?Beyoncé? i Jaya Z rozmawia?am z Adele o... butach (Adele na zdj?ciu po zrzuceniu chyba z 30kg!), a ?Jay Z? uczy? mnie imprezowego uk?adu tanecznego. Wiem, ?e brzmi to surrealistycznie. Ale pos?uchajcie od pocz?tku... Tylko ok. 200 osób, na ma?ej, klubowej przestrzeni, z najlepsz? muzyk?, z zakazem robienia zdj?? (powy?sze to wyj?tek poimprezowy). Ulica zamkni?ta i pilnie strze?ona, wej?cie kuchennymi drzwiami, ?eby nie da?o si? nikogo sfotografowa?. Impreza, na której wszyscy mog? si? wyluzowa? i zaszale?! Ka?dy dostaje na wej?ciu ... kapcie (nie wesz?am w t? opcj?) i bawi si? bez skr?powania do bia?ego rana. Zacz??o si? od rozmowy z Adele o moich szpilkach (namawia?a mnie na kapcie które sama mia?a na nogach). Szczerze, nie pozna?am jej bo jest teraz szczup?a jak przecinek! Gada?y?my za?miewaj?c si? do momentu kiedy powiedzia?a jak si? nazywa...?? Rozmowa z Adele by?a przepustk? do mi?ej konwersacji z ?Rihann??. A pó?niej ju? by?o totalne szaleństwo! ?Jay Z? uczy? mnie uk?adu tanecznego (bezskutecznie bo skomplikowany, ale za to by?o ?miesznie), ?Beyoncé? patrz?c na mój brokatowy, ?wiec?cy garnitur stwierdzi?a ze ?miechem ?e j? przy?mi?am (mia?a na sobie ciemnogranatow?, welurow? sukni?), z Leo DiCaprio tańczy?am przez chwile za r?k? (taka by?a konwencja, a ja sta?am obok), otoczony wianuszkiem dziewczyn Bradley Cooper posy?a? mi u?miechy, ale chyba dlatego ?e jego te? roz?mieszy? mój taniec z Jayem Z. Klan Kardashianek (Kim, Kourtney, Khloe) bawi? si? we w?asnym gronie. ?Kanye West? i ?Travis Scott? wzi?li udzia? w radosnym jam session gospodarzy. Popis na scenie da? Puff Diddy, a pod scen? parkietem zaw?adn?li jego synowie. Charlize Theron zaproponowa?a mi kawa?ek pizzy, kiedy z ciekawo?ci zajrza?am do pude?ka które nios?a (do jedzenia by?a do wyboru pizza, kawior, ostrygi lub homary). W towarzystwie Lany del Rey by? re?yser Jo Jo Rabbit - Taika Waititi, z nim rozmawia?am najd?u?ej, o jego filmie, który uwielbiam. Zapomnia?am o paru osobach: Margot Robbie, Adriana Lima, Jessica Alba, Reese Whiterspoon?,? Jeff Bezos, Timothe Chalamet, Spike Lee... Ot, takie zwyk?e przyj?cie ??. Do hotelu wróci?am ?o 7:00?...

A post shared by Kinga Rusin- Official Profile (@kingarusin) on Feb 10, 2020 at 9:42am PST

RELATED: Adele’s Transformation ‘Was Never About Losing Weight,’ Says Source: ‘She Seems Happier Overall’

Last month, a source told PEOPLE that Adele’s fitness routine consists of cross-training and full-body Pilates. The singer, who is slated to put out new music in 2020, is focused on staying on top of her health for herself and her 7-year-old son Angelo, whom she shares with ex Simon Konecki.

“It’s easy to just focus on her physical transformation, but this is really about something bigger,” the insider shared with PEOPLE. “She got to the point where she didn’t feel great. She knew she had to change something, because she wants to be the healthiest mom possible.”

RELATED: Adele Told a Fan She Lost ‘Like 100 Pounds’ During ‘Amazing’ Encounter: ‘She Seemed So Happy’

“Her whole focus during the weight loss journey has really how been all about how she can be healthier and how can she treat her body better,” the insider added. “It was never about losing weight. Her weight loss happened because she has cut down drinking and is eating more real food. But she now loves her physical transformation too. She is more confident, dresses differently and she just seems happier overall.”