Marcus Rosengren is a Sweidsh musician and music producer based in Värmland, Sweden. 

Rosengren is known for blending old-school sounds with new ones. The love of classic synthesizers and big dreamy reverbs are the key elements in his previous music with the pop group RBKA/ROSE. The group had their song "Låt Mig Vakna" played on "P3 - Osignat" on Swedish National Radio. 

In the recent years, Rosengren has been involved in creating video game soundtracks. He is currently working at "Nine Lives Game Studio" as a music producer and sound designer for the game "Seagull - Crappy Situation". He also compose music for "Rolling fur", a cat puzzle adventure by "Forge Byte".