Taylor Swift is an Olivia Newton-John fan!

While making the most of her time off between Eras Tour dates on Tuesday, June 11, the “Fortnight” hitmaker, 34, headed to Argentinean restaurant Casa Cruz in Notting Hill, London. She was accompanied by several friends, including Cara Delevingne, Kate Moss, Haim sisters Este and Danielle, Lena Dunham, and more.

During the fun night out, Swift and her pals, including Stella McCartney, Phoebe Waller-Bridge, Andrew Scott, The Pretenders’ Chrissie Hynde, and Delevingne’s girlfriend Minke, gathered together. They started singing Newton-John’s Grease track “Hopelessly Devoted to You”.

“They were all singing it on this balcony. It was really loud!” the insider says. “They were in the club from around 8:30 p.m. [local time] to past midnight. So they all had a good time.”

“Taylor was fully making sure all her guests were taken care of and really well looked after,” the source adds.

The insider says Swift just walked “through the front door like anyone else would.” “She arrived with the Haim sisters and Lena and said, ‘Hello’ to a few people outside but that was about it”.

“She was happy. They were all laughing and joking as they walked in. Above the front door of the club, there’s an outdoor balcony area and they all sat outside for the whole evening. You could really hear them. They were so loud chatting away, really laughing and joking,” the source continues.

Stella McCartney, Phoebe Waller-Bridge, Andrew Scott, The Pretenders’ Chrissie Hynde, and Delevingne’s girlfriend Minke all joined Swift for the star-studded outing.

Mert Alaş, who shot the cover of Swift’s 2017 album Reputation, was also present at the dinner. Additionally, images shared on X (formerly known as Twitter) showed him leaving with Moss.

Swift was dressed to impress for the outing.

She wore a black corset top and matching pants underneath an oversized gray jacket. She completed the look with burgundy heels, a black choker necklace, and her signature red lipstick.

The musician’s outing came amid news that her ex, The 1975’s Matty Healy, is engaged to model Gabbriette Bechtel.

The pair, who were first linked in September 2023, announced the news after attending mutual friend Charli XCX’s Brat concert in Brooklyn. This occurred on the same evening Swift was spotted out in London, three months after Healy and Swift split.

Swift is set to continue her fleet of U.K. concerts this week. The pop singer will perform her 100th Eras Tour show in Liverpool on Thursday, June 13. She’ll also be performing on stage in the city on June 14 and 15, followed by appearances at stadiums in Cardiff, Wales, and London.

Fans have been speculating that Swift could have a big announcement up her sleeve for her 100th show. The date coincides with her lucky number 13.