Those seem to be the ones that are simply for watching. Some groups had great costumes. One group was all dressed like bananas. Another had elaborate costumes with huge wings or headdresses. These can also be people blasting popular music from trucks or just live drumming.
People usually sing traditional carnival songs in Creole.
The subjects range from silly to very taboo. One of the best parts of the carnival for me was running the vid . Each vid was quite different. The ones that I liked were the vid s where the band simply played various drums. Everyone was singing traditional carnival songs which were generally pretty easy to pick up and sing.