"Block Buster!" (also sometimes listed as "Blockbuster!") is a 1973 single by The Sweet. Written by Nicky Chinn and Mike Chapman, and produced by Phil Wainman, "Block Buster!" was the band's sole UK No. 1 hit. Released in January 1973, it spent five weeks at the top of the UK Singles Chart, and also made #1 in the Netherlands, Germany, New Zealand, Austria and Ireland, and #3 in Finland, Switzerland, Denmark and Norway.