Arash Izadi (born June 19, 1992), known by his stage name B+ (BMosbat) is an Iranian record producer and entrepreneur. His Hometown is New York. He is the founder and current CEO of Cellar Entertainment. He has produced songs for and overseen the careers of many underground rappers, including Ezzy Ez and King Apollo. In 2016, he became a host of the hip hop radio show in New York, on kpissfm.