David and Victoria Beckham are doting parents to four children, including daughter Harper, and on Saturday they delighted her with a new addition to the family.PHOTOS: David and Victoria Beckham's 10 sweetest moments with mini-me Harper SevenVictoria took to Instagram to reveal that the family had welcomed a pet rabbit, and Harper couldn't have looked happier as she held the furry animal in her hands, with her smiling from ear to ear.