Tens of thousands of people are attending the Outside Lands Music Festival in Golden Gate Park. The festival is in its 18th year and features multiple artists across seven stages. British pop star Charli XCX headlined the first day of the three-day event.

The festival is a significant test for the city's transportation systems, following traffic issues on the Fourth of July. City officials are urging attendees not to drive or park in nearby streets. Further details about the festival and transportation options are available from the source, including information on special SFMTA shuttles and the Judah Muni line.