From PEOPLE Magazine Click to enlarge
Cake pops

• Dessert on a stick? Genius! In 2011 these cute mini treats eclipsed cupcakes as the confection du jour. Celeb fans include Blake Lively and Ace of Cakes chef Duff Goldman.

Missoni for Target

Designer devotees were so eager to buy up the eclectic line-which featured everything from a bike to clothes to home furniture-they crashed the store's website Sept. 13.

Buckyballs

Forget doodling or squeezing one of those stress-relief toys, this year's go-to workplace distraction came in the form of these impossible-to-put-down, shape-shifting magnetic balls.

Colored Denim

Jeans broke out of their basic blue mold and went on a technicolor binge, popping up in red, green, purple and-as singer Kelly Rowland (right) demonstrates-hot pink.

Words with Friends

One of iPhone's most popular apps got even more high-profile Dec. 6, when Alec Baldwin was booted off an American Airlines plane for refusing to pause his match. The Scrabble-esque game currently has 12.5 million users!

The Dukan Diet

After royal mom-in-law Carole Middleton told reporters she'd lost weight on the four-phase high-protein, low-carb diet, the nutrition plan went viral. Fellow converts reportedly include Gisele Bundchen and Jennifer Lopez.

Feather Hair Clips

The year's big hair accessory was totally for the birds, as X-Factor judge Nicole Scherzinger demonstrated in May.

Animal Sweaters

After fauna-themed tops appeared in Marc Jacobs's and Balenciaga's fall shows, the trend became a ready-to-wear fave, even for the likes of Taylor Swift (wearing Topshop, right).

Nail Stickers

• With devotees like Katy Perry and Rihanna leading the way, stick-on nail art in everything from pink-leopard print (below) to snakeskin took salons by storm.

Zumba

The sexy Latin dance-inspired fitness craze became a hit at gyms around the country, drawing famous fans like Kirstie Alley, Jennifer Lopez, Jordin Sparks and Vivica A. Fox, a Zumba pitchwoman.