She is in Paris after performing at the Olympic opening ceremony by the banks of the Seine on Friday night.
And newly engaged Lady Gaga was spotted amongst the crowd as she watched the evening sessions of the swimming competition on Sunday.
At the event, the pop superstar, 38, was heard referring to her longtime boyfriend, tech entrepreneur Michael Polansky, 46, as 'my fiancé' in a TikTok video shared by French Prime Minister Gabriel Attal.
She oozed glamour in a white team USA jacket as she showed her support for her home team.
Lady Gaga added a pop of colour with a bold red lip and rocked some reflective statement sunglasses while sat poolside.
The popstar scraped her blonde hair back from a centre parting into a low ponytail as she cheered on Nic Fink, who won silver in the men's 100 metres breaststroke.
The sighting comes hours after she was spotted at the women's gymnastics with Tom Cruise, after the A-list pair shared a friendly hug.
Lady Gaga performed at the Olympic Opening Ceremony on Friday night but it has now been revealed it was pre-recorded due to 'safety reasons'.
She sang Mon Truc En Plumes on a set of stairs along the Seine River in Paris - but Maud le Pladec, the choreographer of all Olympics and Paralympics opening ceremonies, has now revealed that the performance was actually pre-recorded.
Speaking to Variety, Maud explained: 'Unfortunately, it was the only [performance] that, for safety reasons, we had to pre-record late in the afternoon, once we knew for sure that it was going to rain.
'We had minute-by-minute updates, we had never watched the weather forecast so closely in our lives.
'We assessed that it was going to be too dangerous for performers, even with a few drops of rain. [Gaga] wanted to do it absolutely so we preferred to pre-record it rather than cancel it.'
Maud explained that the performance wouldn't have worked in the bad weather.
She said: 'The soil would have been slippery. She was wearing heels, very near the water, there were stairs … We had to be extremely cautious.'
Gaga took to social media after her performance, revealing that she relished the opportunity.
She wrote on Instagram: 'I feel so completely grateful to have been asked to open the Paris @Olympics 2024 this year.
'I am also humbled to be asked by the Olympics organising committee to sing such a special French song—a song to honour the French people and their tremendous history of art, music, and theatre.
'This song was sung by Zizi Jeanmaire, born in Paris a French ballerina, she famously sang 'Mon Truc en Plumes' in 1961.
'The title means 'My Thing with Feathers.' And this is not the first time we've crossed paths. Zizi starred in Cole Porter's musical 'Anything Goes' which was my first jazz release. (sic)'
Earlier in the day, Gaga shared a friendly hug with Tom Cruise. as they both arrived to watch the women's gymnastics.
Tom looked pleased to see her as they chatted away and looked smart in a white T-shirt and dark jeans.
It comes after Lady Gaga fans went wild saying she was 'just like them' after she was spotted stepping out to buy a takeaway sandwich in Paris on Saturday.
She was keen to make the most of the city's culinary delights - stopping off to to order a sandwich herself - despite her superstar status.
The star was seen looking typically chic in an all-black ensemble while sporting dark shades and flawless makeup - as she was joined by two burly bodyguards.
Lady Gaga - who said back in 2011 that she 'loved ham and cheese sandwiches from Paris' - was seen chatting away making her order before sharing a laugh and joke with one of the waiters who took her card payment.
She was then seen being escorted out by her two security men as fans who spotted her took snaps and videos.
The star was then whisked away in a waiting car as she carried her takeaway sandwich all wrapped up for her in her hand.
Her fans went wild over the clip as they said on X: 'I just love that Lady Gaga is so well protected that she can buy sandwiches normally, as the rest of us. Good stuff!',
'Gaga probably tried to order the sandwiches in French she's so extra like that!',
'imagine your enjoying your lunch at a restaurant and lady gaga steps out to order sandwiches to go for her and her boyfriend.',
'she is living her best life I'm so happy for her.', 'she's just like me!', 'where was she and what did she order?!.' 'Gaga said in 2011, « I love Paris, ham and cheese sandwiches », and now we're in 2024 and we saw her ordering a « sandwich jambon fromage » in Paris again!'
