Usher will be portraying boxing legend Sugar Ray Leonard in the upcoming movie Hands Of Stone. In a new behind-the-scenes video the actor and singer shows just what it took to become Sugar Ray. Usher actually got in the ring with Leonard to learn each and every way he would move. His respect for the fighter is very apparent as the four minute video shows all the intense training and work that went into recreating one of the best boxers to ever fight. Robert De Niro also stars and the film will hit theaters August 26. Watch the featurette above and check out the official trailer below.