On this day in music history: January 24, 1980 - A large billboard to promote Pink Floyd’s album “The Wall” and their four city tour of the US, is erected above the parking lot of the Tower Records store on Sunset Blvd. in West Hollywood, CA. The billboard has a giant brick wall pasted up in front of it, resembling the cover artwork for “The Wall”. Bricks are removed each day from the billboard, slowly revealing a massive blow up of artist Gerald Scarfe’s artwork from the inner album cover gatefold underneath. The artwork is fully unveiled by the end of the bands’ Los Angeles tour dates in February.