The formal waltz performed by a quinceañera and her court is traditionally called a vals.
Vals is the Spanish word for “waltz,” and the dance is one of the best-known formal elements associated with many quinceañera receptions. The honoree may dance with members of her court, family members, or both. Choreography is often rehearsed in advance, especially when the performance includes coordinated entrances, turns, or costume changes.
The presence of a vals does not mean every quinceañera follows an identical program. Some families retain a classic waltz, while others add modern group dances or replace formal choreography with a simpler presentation. Music choices also vary by country, generation, and family preference.
A vals should not be confused with salsa, tango, or bolero. Those are distinct musical and dance traditions, even though a reception may include several styles during the evening. The defining feature here is the formal waltz associated with the celebration.