Mr Charles Berry
Mr "Howlin Wolf"/ Mr Hubert Sumlin
Mr "Scotty" Moore (+many more 50's players)
...who all POPULARISED the Electric guitar (and accesories) and those unsung bluesmen such as Lightnin Hopkins, Big Bill Broonzy,Leadbelly (etc,etc) who inspired them........
Without all these people we'd probably be listening to Kazoo Muzak...
...wait a minute isn't that what Boy bands play??
Accuracy,you say? hmm interesting concept..