R. Kelly’s demo of Mariah Carey’s Memoirs of an Imperfect Angel cut “Betcha Gon’ Know” has surfaced. Kellz’ version, titled “I Check,” was written from the perspective of a female who suspects that her man is cheating, and will remind listeners of his epic “Trapped in the Closet” series. Although his storytelling lyrics were not used on Mimi’s album, Kellz had reportedly recorded a version for her scrapped Angels Advocate remix project.