Answer: Quinceañero/quinceañera is a Hispanic celebration done, usually for women when they reach the age of 15 years old, similar to the sweet sixteens.
This party usually starts with a big dinner, where the close friends and family of the birthday girl, here the girl may have a little speech, where she addresses some close friends/family and gives them a candle. Also during this part comes the vals, where the girl may dance whit family and friends.
Usually, around 12 pm, the party starts, and more guest starts to come, here the music and dance take the night.
Things like the music played, the decoration, food, and drinks may depend on in which country the event is celebrated.