The birthday of a person is the anniversary of his birth. In many cultures it is customary to celebrate the birthday, for example by a party with friends, in which gifts are exchanged. Birthday parties are very popular especially among children. They are an opportunity for socializing with friends and family. In her usual deliver gifts to the host and eat a cake or pie which placed you candles, so that the cumpleañero blow and shut down as the guests sing a birthday song, being among the most popular happy birthday in several countries and las mañanitas at Mexico.