Black Cards was an American electronic duo that formed in July 2010 as Fall Out Boy bassist Pete Wentz's new main project following the band's indefinite hiatus. Originally conceived as a four-piece electropop band, Wentz played bass guitar and wrote the band's lyrics, while singer Bebe Rexha filled in on vocals. The pair met when Wentz and producer Sam Hollander overheard Rexha recording demos at their studio. Nate Patterson and Spencer Peterson completed the lineup with guitar and drums respectively.