Four lads from Birmingham invented an entire genre mostly because Tony Iommi lost his fingertips at work.
Fun fact: Tony Iommi lost two fingertips in a factory accident and plays guitar with homemade prosthetics.
Four lads from Sheffield who got famous off MySpace and then decided they'd rather be a lounge act.
Fun fact: Their debut album became the fastest-selling in UK chart history without any prior single reaching the top fifteen.