You haven't really been to Vegas until you've see one of those shows where the girls are topless and wearing giant feathery headdresses. It's classic Vegas at its best. It's not like any of the Cirque shows. It's good old fashion singing, dancing, and fully choreographed numbers. Splashy costumes, chorus lines, it's all there.
It's a fun show. They offer a 'kid-friendly' version earlier in the evenings. I don't remember, but I think there is a two drink minimum. It's classic Vegas in all its feather and rhinestones glory.