The Weeknd and Janet Jackson Headline Outside Lands 2018 Festival The line up for the music festival was announced Tuesday and it takes place in San Francisco's Golden Gate Park from August 10-12. Other notable artists performing include: Prior to Outside Lands, the Weeknd and Jackson will serve as headliners at New York's Panorama music festival. The festival is a celebration of music, comedy and local food an drinks from the Bay Area. Tickets go on sale Thursday at sfoutsidelands.com.