Alba totes a much-beloved Honor Marie, 11 months, in N.Y.C. Plus: Gwen Stefani, Michelle Obama & Oprah, Jennifer Aniston and more

PEEKABOO!

Rihanna, who made her first major red-carpet appearance since February at the Metropolitan Museum of Art's Costume Institute Gala on Monday, takes another fashion risk as she leaves her New York City hotel Tuesday in some revealing legwear.