On this day in music history: January 19, 1980 - “The Wall”, the eleventh studio album by Pink Floyd hits #1 on the Billboard Hot 100 for 15 weeks. Produced Bob Ezrin, David Gilmour, James Guthrie and Roger Waters, it is recorded at Super Bear Studios, Studio Miraval in La Val, France, The Village Recorder, Cherokee Studios, and The Producers Workshop in Los Angeles, CA from January - November 1979. The project has its genesis in an incident at a concert in Montreal on Pink Floyd’s “Animals Tour” in 1977. Exhausted by the bands’ grueling tour schedule, Waters becomes agitated by a group of fans in the front row and spits on one of them. Later feeling regret over what had happened, Waters begins to reflect on where rock stardom had taken him personally, and to confront a number of unresolved issues in his past. The twenty six track double LP set, largely written by Waters (three songs co-written w/ David Gilmour and one with Bob Ezrin), centers around themes of alienation and struggles with various personal issues going back to childhood. Supported by a limited, but now legendary tour, the album goes on to be a huge critical and commercial success, spinning off three singles including their biggest hit “Another Brick In The Wall Part 2” (#1 US and UK Pop). “The Wall” certified 23x Platinum in the US by the RIAA, earning a Double Diamond Certification.