Canadian vocal quartet The Tenors issued an apology late Tuesday after their performance at baseball’s 87th All-Star Game was sabotaged by one of its members. The British Columbia group performed the Canadian national anthem at a pregame performance in San Diego. But one of the group’s singers changed the lyrics to say that “all lives matter”—the controversial retort to the Black Lives Matter movement in the U.S. The singer, Remigio Pereira, also held up a sign reading “All Lives Matter” during the event, a move that got him ejected from the band. “The actions of one member of this group were extremely selfish and he will not be performing with The Tenors until further notice,” the statement read, noting that other members were “shocked and embarrassed” by the political stunt.