Did Pierce Brosnan sing in Mamma Mia?

Pierce Brosnan did not sing in the movie Mamma Mia. While Brosnan plays Sam Carmichael in the movie, the actor does not sing in any of the film's numbers. Instead, Swedish pop group ABBA recorded the songs for the movie. The vocals of Brosnan's character were performed by Swedish singer Björn Ulvaeus.