Hollywood Mel's opening date unknown. But first Mel's opened in San Francisco in 1947.
Edited excerpt from website: "Mel's in Hollywood opened in 2001 in the Max Factor building on Hollywood and Highland Ave. Mels shares the building with the Hollywood Museum and boasts a full service bar inside, the Celebrity Bar. This location is right around the corner from Hollywood Blvd, and is open late nights to 3am on weekdays and 24 hours on weekends!"
Thanks! Your answer is awaiting moderation.