The king of tropical music, salsa used to be regarded as low class music. It's more accepted now though. Salsa originated from the Cuban immigrants in New York, which is why NY and Cuba are some of the best places to hear salsa. In Colombia, Cali is the salsa capital, but Medellin has a few spectacular places as well. It's not easy to dance to though, at least not for me, being from Belgium.
Some people say it's in the knees, some say it's in the hips, some say it's in the feet.
Go to a salsa joint just to watch, it's amazing. Us western people often miss those, just listening to the main rhythm, but from watching the locals, I think the secret lies in these counterrythms. That's what they dance to. Get any CD that has this one, you won't be sorry. Micaela is his woman who isn't very happy so goes to dance alone, and quite spectacularly at that, it seems.