Paramore was one of many bands that performed at the Leeds/Reading festivals last weekend in UK, and in true festival spirit, they decided to do something special. During their hit, "Ain't It Fun," Hayley Williams brought her little sister, Erica, out to dance along to the catchy tune. Watch the fan footage of the performance above.
Paramore still have a handful of stadium and festival dates this summer and fall. Check them out at the band's official website.