According to LA Times, the Hollywood Sign put on a cute light show this past Tuesday night! No one knows why the Hollywood Sign put on a light show, but it took place during Halsey 's concert at the Hollywood Bowl! The Hollywood sign hasn't been lit since the 2000 New Year's celebration! LA Times says:
the sign was illuminated from 1923 to 1933 in an effort to help advertise the luxury Hollywoodland housing development (the sign read “Hollywoodland” at the time). By 1933, though, the sign was shut off because of the cost to maintain the light bulbs.