In the glittering world of high-stakes competitive cheerleading, the World Cup Twinkles are known for heart-stopping stunts, gymnastic prowess and sassy Jersey style. These aren't rah-rah cheerleaders, on the sidelines with pom-poms. They're all-star cheerleaders — the kind of cheerleaders who bound onto stage with dramatic smoke billowing and thousands of fans screaming. But the Twinkles are also little girls, just 8-12 years old.