Open – Grand Park + The Music Center: Performing Arts Center of Los Angeles Fourth of July Block Party returns as the county’s largest free July 4th celebration. Featuring picnicking, games, art-making, music, dancing and a stunning fireworks show high above Downtown L.A., Grand Park + The Music Center’s Fourth of July Block Party is the ultimate summer holiday celebration. The highly popular event offers activities for all ages including soccer, tag, bubble fun and chalk art. Two stages featuring DJs and live musical performances will entertain audiences throughout the celebration.