Which are the sports before which Cheerleaders are dancing? The cheerleaders are especially present in America, but soon after they appeared in the USA, they began to appear in other European countries. To become a successful cheerleader you will have to be willing to practice aerobics, exercise, be fearless because you will often have to do dangerous jumps that can injure you. Cheerleaders are beautiful and pretty girls who often appear before a sporting event to liven up the whole atmosphere.