In a quinceañera, vals is the Spanish word commonly used for the formal entrance or presentation dance.
Vals means “waltz,” and the dance is often performed by the quinceañera with her court of honor. The group may practice a choreographed routine that begins with a traditional waltz and later shifts into contemporary or Latin dance styles.
The dance has a ceremonial purpose: it introduces the celebrant and her court to guests while giving the event a formal, public character. In some families, the quinceañera also dances with her father or other relatives during a separate part of the program.
Not every celebration uses a literal waltz. Some families call the main choreography a vals even when it includes pop music, salsa, cumbia, or other styles. Thus, the term identifies the ceremonial dance tradition more than one strict musical arrangement.