Time Out says
Rebel Rebel presents a mix of female artists and KCRW DJs for outdoor, all-ages concerts on the Hammer grounds. The concerts are free and open to the public without tickets or reservations, so you’ll want to arrive early to be sure to get a spot. A cash bar will offer drinks and light snacks starting at 6:30 and the music starts at 7:30pm. The museum galleries will stay open until 9pm, so you can check out the galleries in between sets, while the museum grounds will close at 11pm.