Simpson-Wentz and her 3-month-old son arrive at London's Heathrow Airport. Plus: Christina & Max, Britney Spears, Justin & Jessica and more


Christina Aguilera gives her little man, 13-month-old Max, a lift Tuesday after a lunch date in Los Feliz, Calif. Aguilera celebrated her son's first birthday in January with a bash inspired by the children's book Where the Wild Things Are.