Los Angeles duo Mansionz feature singer/songwriter Mike Posner and singer/producer Mat Musto, aka Blackbear. Formed in 2016, Mansionz make electronic-based hip-hop and R&B-influenced pop. Established solo performers, Posner and Blackbear have a creative partnership that extends as far back as 2012, when they collaborated on writing Justin Bieber's single "Boyfriend." From there, they eventually formulated the Mansionz concept. Signing to Island Records in 2016, they released the singles "STFU" and "White Girls." They debuted their full-length studio album, Mansionz, in 2017. ~ Matt Collar