Baker designed the iconic rainbow flag in 1978, which has now become the international symbol of gay pride.
RELATED: Creator of gay flag shares story of strength, pride
The event will take place at the Castro Theatre on Thursday, June 8, 2017, from 7:00 p.m. to 10:00 p.m.
Admission is free, but organizers are asking that all guest register for tickets through their Eventbrite.
The event is open to people of all ages. Click here to make a donation to Diversity San Francisco.