WORKING CLASS: So much for a day of rest Sunday for Victoria and David Beckham. She presented her collection first thing in the morning and he wrapped up the day at Yohji Yamamoto’s Y-3 show. Their toddler, Harper, is known to make the rounds in her mother’s arms and their three sons are accustomed to their parents’ workaholic ways. David Beckham said, “They understand. They know we’re hardworking parents.”