The Fiesta Flambeau Parade, the crown jewel of the 11-day party with a purpose, will light up downtown San Antonio on Saturday, May 3.

The Fiesta Oyster Bake, one of the biggest parties in San Antonio, will take place from Friday, April 25, to Saturday, April 26 at St. Mary's University. The bands headlining the event will be Hoobastank, known for its song "The Reason," on Friday, and Sugar Ray, known for its hit "Fly," on Saturday.

Fiesta San Antonio starts Thursday, bringing 11 days of parties, music and culture to the city. Why it matters: Fiesta raises millions of dollars for local nonprofits and brings thousands of attendees to the core of the city.