The best-of-seven series is between the Texas Rangers and the San Francisco Giants. The Giants won the first two games of the series in San Francisco.
Game 3 will take place in Arlington, Texas. Former "American Idol" champion Kelly Clarkson will sing the national anthem in her home state.
The 16-year-old Bieber sports gear from both teams in the "Never Say Never" clip, which was shot at Angels Stadium in Anaheim, Calif.
The song is from the platinum-selling singing sensation's upcoming acoustic CD, due out on Nov. 23.
