Digital Underground toured nearly every year until 2008; this consisted of live shows in Europe, Japan, Canada, Australia, and the U. While the group's origins lay mostly in Oakland and Berkeley, California, various characters and voices from around the U. The group appeared in and donated music to the 1991 Dan Aykroyd film Nothing but Trouble. Founded in 1987, the group's image was originally more militant, and was intended to be a tribute to social activists The Black Panthers.