Downtown Palo Alto will play host Sunday afternoon, June 15, to the annual World Music Day festival, an event for which streets will be closed to traffic so that music lovers can stroll about, listening to dozens of musicians playing on sidewalks and in plazas.

The free music festival will take place from 3 to 7:30 p.m. However, streets will close in advance, starting at 11 a.m., and remain closed until 9 p.m. Those affected are: University Avenue between Webster and High streets, and Hamilton Avenue between Bryant and Ramona streets.

World Music Day will feature 50 professional and amateur musical groups performing a variety of musical genres, including jazz, blues, pop, rock, classical, world music, choral and dance, organizers announced.

For more information, go to pamusicday.org.

Watch a video of last year's World Music Day.