Matthew Tyler Musto (born November 27, 1990), known professionally as Blackbear (stylized as blackbear), is an American singer, songwriter, and record producer.[1] He has collaborated with numerous musical artists such as Marc E. Bassy, Justin Bieber, G-Eazy, Mike Posner, Maejor Ali, Palisades, Machine Gun Kelly, Mod Sun, Rivers Cuomo, Childish Gambino, Billie Eilish, Pharrell Williams, Miley Cyrus, Linkin Park, Tiny Meat Gang, and Jacob Sartorius.[2] He co-wrote "Boyfriend" by Justin Bieber, alongside Mike Posner, which debuted at number two on the Billboard Hot 100.[3] He also produced the title track from G-Eazy's album These Things Happen, as well as featuring on the album. Musto is also a member of the alternative hip-hop and R&B duo Mansionz with Mike Posner