And honestly, most people call me Spuds. No one really calls me Chris.” A poster showing a skiing Spuds MacKenzie, the 1980s-era Bud Light mascot, adorns the window of a shop in Colorado.

A gig at Toronto’s Budweiser Stage inspired him to resurrect his 1988 comeback hit, which mocks Budweiser, Pepsi, Coke, and ...