Fans of Barenaked Ladies, the Canadian alt-pop quartet that formed in 1988 in Toronto’s Scarborough suburb, may already know that former frontman Steven Page left the band in February to pursue a solo career. But that shouldn’t stop the remaining Ladies—Ed Robertson, Kevin Hearn, Jim Creeggran and Tyler Stewart—from bringing the same humor-laced show that characterized past Barenaked Ladies performances to the Briggs & Stratton Big Backyard...