Come next May 26 in Moncton, N.B., Burton Cummings and Randy Bachman will kick off a national tour under the name The Guess Who. The last time they played a show like this was July 30, 2003 for SARSfest in Toronto. Why so long? Because each of them left The Guess Who before it was done.Randy exited in 1970 and Burton in 1975, and the group carried on with bass player Jim Kale and drummer Garry Peterson. It was Kale who realized that there was no clear ownership of the name "The Guess Who," so he filed for its trademark in the U.S. in 1986 without telling Burton or Randy.