I Do n't Like Mondays " is a song by Irish group The Boomtown Rats about the 1979 Cleveland Elementary School shooting in San Diego . It was released in 1979 as the lead single from their third album , '' The Fine Art of Surfacing '' . The song was a number one single in the UK Singles Chart for four weeks during the summer of 1979 , and ranks as the sixth biggest hit of the UK in 1979 . Written by Bob Geldof and Johnnie Fingers , the piano ballad was the band 's second single to reach number one on the UK chart
1979 Cleveland Elementary School shooting
Cleveland Elementary School shooting (San Diego)
I Don't Like Mondays