Jazz hands

Jazz hands in performance dance is the extension of a performer's hands with palms toward the audience and fingers splayed (this position is also referred to as webbing). It is commonly associated with especially exuberant types of performance such as musicals, cheerleading, show choir, revue, and especially jazz dance shows. In cheerleading, the position with arms outstretched and fingers wiggling up and down is sometimes referred to as spirit fingers or jazz fingers. Depending on the performance venue, both gestures can be associated with campiness.