29. The White Stripes (Jack & Meg White)

Jack and Meg White presented themselves as siblings when The White Stripes formed in 1997, but they were actually married (and later divorced). The sibling ruse was a deliberate artistic choice to fuel mystery.
The hidden marriage added layers to their raw sound. Paparazzi and fans bought the sibling story for years before the truth emerged, preserving the band’s enigmatic aura.