I went to the "Royal Lahainan Luau". Luau is, I assume, Hawaiian for "party". It consists of a buffet, drinks, and stage performances.
I went to the Royal Lahaina Luau. If you go there, do order the "premium package" if you can. It is only $15 per person, and it menas you get free drinks while waiting for the luau to start, you are served first, get the best seats and so on. There are usually about 700 people at this luau, and even with a six-lane buffet it takes time for everyone to get their food.
The show starts with everyone getting a chance to learn how to "shake it, Hawaiian style": Hula! (Everyone without a Y-chromosome, that is, as they only teach the women's moves. Unless female, remain seated.)
Once the amateurs have finished dancing, the pros take over.
Different hula, different clothes.
While the women do the "rolling hips", the men do a dance similar to a Maori war dance, if you've seen that.
A couple of hulas later we get the fire dance. The men have double-ended torches (think two torches connected bottom-to-bottom, or a flaming Q-tip).
The women hold burning globes suspended from chains.
The whole luau crew on stage.