Why they sound alike
Unwritten, the title track of English singer-songwriter Natasha Bedingfield's debut album (released September 2004) bears some resemblance to Kiss Them for Me, Siouxsie and the Banshees' hypnotic ode to actress Jayne Mansfield (Released May 13, 1991). Similarities include: same key (F major), same tempo (100 bpm), close drum beats/rhythms, South Asian influenced percussion (tabla, hand-cymbals) and lead guitar/sitar riffs that emphasize the third note of the root scale.