They've been classified as post-dubstep and downtempo, but London, England's Stubborn Heart -- Luca Santucci and Ben Fitzgerald -- describe themselves as electronic soul. When they teamed up in 2010, Santucci already had a lengthy discography as a solo artist and collaborator. In 2011, he and Fitzgerald debuted as Stubborn Heart with Need Someone, a white-label 12". A year later, after signing to One Little Indian, the duo released a self-titled album supported by BBC 6 Music DJ Gilles Peterson. ~ Andy Kellman