"The Jean Genie", featuring its dirty Bo Diddley riff and lyrics that may be about Iggy Pop, was released November 24, 1972 and peaked at #2 in the UK but only #71 in the US. The Sweet's "Blockbuster", released in January of 1973, shares the same beat and heavy guitar sound. But both Bowie and Sweet have all agreed it was coincidence.
Songwriter Nicky Chinn described a meeting with Bowie at which the latter "looked at me completely deadpan and said 'Cunt!' And then he got up and gave me a hug and said, 'Congratulations...' After all "Blockbuster" went #1.