Stars like Rihanna
opted for Essie's electric palette, and salons couldn't keep the colors in stock.
Barack Obama Chic
Obama's face appeared on everything from T-shirts to ready-to-wear even before the election; afterwards, the items flew off the shelves.
Demand for the V.P. candidate's minimalist, Kazuo Kawasaki frames was "overwhelming," the manufacturer said.
The calorie-burning gaming console made at-home aerobics, yoga and strength training a hit.
Baggy denim became an instant must-have when Katie Holmes
was seen wearing a pair said to belong to husband Tom Cruise
Stars like Nicole Richie
modernized the '70s staple by pairing them with both jeans and evening wear.
The hot new accessory for religious teens, purity rings were seen on the fingers of Jordin Sparks
and the Jonas Brothers
The Pinkberry Effect
Chains like Yolato and Red Mango followed Pinkberry's lead and swirled into ubiquity.
Frozen Yogurt Mania
Crazy High Heels
With celebs leading the pack, artistic pumps and dangerously high heels (7 inches!) were de rigueur.