Singer Justin Bieber in the ring before Floyd Mayweather Jr. takes on Marcos Maidana in their WBC/WBA welterweight unification fight at the MGM Grand
Singer Justin Bieber in the ring before Floyd Mayweather Jr. takes on Marcos Maidana in their WBC/WBA welterweight unification fight at the MGM Grand Garden Arena on May 3, 2014 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)