There is more than artist named Cannabis: [1] Cannabis was a American rock band from Rhode Island, active during the late 1960s and early 1970s. They released one album, Joint Effort in 1972, and their blend of folk, blues and psychedelic rock has been compared bands such as the Grateful Dead. The Gear Fab label reissued Joint Effort in 1999, which, despite the title, only contains one reference to marijuana. [2] cannabis is also a short-lived Japanese indies hard rock band active in the early 2000's.