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

DINERS' CLUB

Miley Cyrus – whose Hannah Montana: The Movie opens April 10 – steps out Tuesday night with beau Justin Gaston for a dinner date at famed West Hollywood eatery Koi.