Randy Bachman, left, and Burton Cummings

FOR THE FIRST time in 23 years, Burton Cummings and Randy Bachman are performing as the Guess Who, touring the U.S. through August 22. Expect to hear such hits as “These Eyes,” “No Sugar Tonight” and “American Woman,” as well as songs from the 78-year-old Cummings’ solo career and the 82-year-old Bachman’s other successful band, Bachman-Turner Overdrive.

“We have different lives, but when we’re together, there’s this one-plus-one-equals-three,” Bachman tells AARP. “There’s something we don’t consciously give or receive from each other; it’s just there.” —Craig Rosen