The formal dance sequence performed at a quinceañera reception is commonly called a vals.
Vals is the Spanish word for a waltz, and the dance often forms part of the celebrant’s presentation with her court. The choreography may begin with a traditional partner waltz and then shift into a more modern routine selected by the family and participants.
The dance is not identical at every celebration. Some families use a classical waltz, while others combine Latin, pop, or contemporary music. Rehearsals can be an important part of preparation because the court may perform coordinated steps, formations, and costume changes.
“Vals” identifies the dance tradition, not necessarily one particular song. A quinceañera’s chosen music can therefore differ from another celebration’s music while still being described as the vals.