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Adele has revealed she's "working out like an athlete” so she can be fit enough to walk around the stage in Germany. The Hello singer has been training three times a day in order to prepare for her series of shows in Munich this coming August. ”The reason that I am working out like I'm an athlete again is because those shows that I announced in Germany, that stage is f**king enormous," she admitted, according to MailOnline. ”I'm probably going to walk about eight miles (12km) a night, so I need my cardio and my stamina to be up.” The 35-year-old has a strict routine she's adhering to, although some of her training methods are certainly unusual. ”I have upped my cardio game at the gym. And I might start doing what Beyoncé had to do when she was a teenager.” “They used to make her do a run around a park or a treadmill with high heels singing. So I might start doing that to really open those lungs, although I don't wear my heels. So I'll just wear my trainers.” The star will finish her residency in Vegas in June, before performing her stint at a purpose-built Euro 24 stadium in Munich. ”I am back at my gym grind like nobody's business. My a**e is getting rock solid again. I can move mountains with my bum.” THIS VIDEO MUST NOT BE EDITED FOR LENGTH TO COMBINE WITH OTHER CONTENT