'I can't believe we were chosen to perform the Apple dance'
Out of thousands of fans at Belsonic in Belfast, Anna and Maisie said they couldn't believe they were chosen to perform Charli XCX's iconic Apple dance.
The trend of selecting an 'Apple Girl' began during Charli's Sweat tour last summer and has continued as part of the current Brat tour.
When Charli performs Apple, a camera cuts to a fan doing the Apple Dance in the pit.
Twenty-year-old Anna joked she and Maisie have watched their performance back "too many times".