Longoria Parker brings her plush must-have carry-on at LAX. Plus: Jen & John, Justin, Christina Aguilera and more

MIKED UP

Justin Timberlake works the crowd Thursday during a soulful performance at the Keep A Child Alive's 5th annual Black Ball at New York's Hammerstein Ballroom. As the Big Apple's newest resident, Timberlake tells PEOPLE that New York is "the greatest city in the world."