Thinking Catholics will be well aware of then-Cardinal Ratzinger's wonderful book 'The Spirit of the Liturgy', where on page 198 he states unequivocally that "Dancing is not a form of expression for the Christian Liturgy." The man who wrote that is now the Supreme Pontiff of the Universal Church so, his views on liturgy certainly should be listened/adhered to.
The following story, taken from Independent Catholic News illustrates, perhaps somewhat how dangerous it can be to allow/promote liturgical dance in your Church. You never know what can happen!?