LIAM and Noel Gallagher wound down after their -triumphant Oasis reunion gig by chilling in separate hotels half an hour from each other. The pair reunited after 16 years for Friday’s sensational tour opener in Cardiff but dodged after-concert parties to get ready for last night’s show. The Sun on Sunday can reveal Liam, 52, and Noel, 58 — famed for their rock ’n’ roll lifestyle — shared a few words before being whisked away from the Principality Stadium in waiting cars at around 10.30pm. A source said: “The atmosphere was absolutely electric and Liam and Noel were delighted with the first night. “They were a bit shell-shocked. “It went better than anyone could have imagined. “The lead up has all been -carefully orchestrated, as everyone knows how delicate and fragile Liam and Noel’s relationship is. “They don’t want to over-expose themselves to each other. 'Determined to stay focused' “Having separate residences is the best option so they can relax in their own space. “They stayed in separate locations outside the city around half an hour away from each other. “They’re happy families at the moment and they want to keep it that way. “Liam has been off the booze for a while and sounds better than ever. “He wants eight hours’ sleep every night and is avoiding boozing and partying altogether. “Liam’s clean-living is working wonders too. “Everyone’s been really impressed — they’re determined to stay focused on making the magic happen on stage.” The brothers sent fans wild with a set list including classics such as Stand by Me, Wonderwall, Live Forever and Half The World Away — which was used as the theme for TV sitcom The Royle Family. And they are determined to keep up standards. Liam’s partner Debbie Gwyther has been pivotal in keeping him focused ahead of the reunion dates. The source added: “Debbie -protects him from all the hype so he doesn’t get carried away. “They’ve swapped out Guinness for zero per cent alcohol beers and keep the vibe backstage as chilled as possible.” Noel’s daughter Anais, 25, was at Friday’s gig, along with her mum Meg Mathews, 59. So too was Liam’s sons Lennon, 25, and Gene, 24. A source revealed: “It was a special and emotional night for their kids as they didn’t think they’d see their dads performing as Oasis again after their bitter -feuding. “They’ve lived the ups and downs and seen it first hand. “Anais has been a driving force in helping bring the brothers back together. They were jubilant, but overwhelmed.” Oasis representatives declined to say where Liam and Noel stayed — but it was reported the latter checked into the Park Gate Hotel in Cardiff city centre. And yesterday at around 6.30pm a grey Land Rover with a police escort of four officers on motorbikes was seen leaving the five-star Celtic Manor resort. Both hotels are part of the Celtic Collection franchise. As well as the main hotel, Celtic Manor boasts a number of private lodges. Then US President Barack Obama stayed in one in 2014. The hotel’s 18-hole golf course has hosted the Ryder Cup. The brothers’ fellow band member Paul “Bonehead” Arthurs, Gem Archer, Cardiff-born Andy Bell and American drummer Joey Waronker are also joining the brothers on their clean-living tour regime. An unforgettable experience and a dream come true. One to tell the grandkids.Harry Bruce Back at the stadium, a secret after-party drew celebs including Danny Dyer, Louis Tomlinson, Cara Delevingne, Anya Taylor-Joy and Kasabian rocker Sergio Pizzorno. Welsh rugby ace Alun Wyn Jones was also there, along with Gavin and Stacey’s Rob Brydon and Ruth Jones. Glastonbury organiser Emily Eavis had been spotted watching the curtain-raiser from the VIP seats, leading some to speculate she is trying to book the band to star at the festival in 2027. As well as the 74,500 at the -stadium, more than 1.3million fans watched live streams — with around 750,000 people tuning in on YouTube and a further 550,000 on TikTok and Instagram. Fans lucky enough to get tickets for the gig were blown away. Harry Bruce, 25, from Glasgow, came with friends Oliver Cheetham, 20, from Sheffield, and Max Vince, 24, from Southampton. Harry told The Sun on Sunday: “The atmosphere prior to the gig was something to rival a European football final — it was sensational. “People from all over the country, of all ages coming together belting out tune after tune. An unforgettable experience and a dream come true. One to tell the grandkids.” Oliver said: “All different types of ages and faces where all together in unison and I’ve never experienced anything like it before. “When Oasis came on and you could hear the rumble of Noel’s guitar and Liam’s voice it was like an out-of-this-world experience.” Max added: “Standing there was absolutely incredible and the atmosphere was like nothing I’ve ever seen before. “There were grown men and women with tears in their eyes. “Everyone was getting on so well, I even managed to get on the shoulders of the bloke next to me when Half The World Away came on. There was a buzz the whole evening and it didn’t even take too long to get a drink which I was surprised at.” Simon Hunter, 43, travelled from London with fiancée Tara Parkhouse, 42. He said: “They united an entire nation in Cardiff that spanned -generations and gave the crowd something that is almost too incredible to put into words. "Liam, Noel and the band had the entire stadium rocking.”