Jennifer Aniston

WHAT SHE WORE
The actress promoted her her upcoming comedy The Switch on Jay Leno in a simple little black dress with abbreviated dolman sleeves.

WHY WE LOVE IT
The easygoing-but-still-sexy shape was perfect for the laid-back star: A high hemline and peep-toe heels showcased her tanned, toned legs, while layered necklaces and bracelets brought shine to the relatively informal style.