Momsen stays rosy in a bright skirt – and matching lips – at a bash in N.Y.C. Plus: Maks & Karina, Christina Aguilera, Johnny Depp, Mariah Carey and more

SHOP GIRL

Staying color-coordinated with pale jeans, a head scarf and oversized white-rimmed shades, a retro-looking Christina Aguilera steps out Tuesday for a shopping trip to Fred Segal in Beverly Hills.