In this installment of "Celebrity Looks of the Week," women of varying ages chose chic leopard-print dresses, while the innocent keyhole neckline was popular at two blockbuster events: the Academy Awards luncheon and the Super Bowl.

Both styles are totally wearable. Just be weary of over-accessorizing!

Photo: Getty Images (2) | FilmMagic

THE CAT'S MEOW:

At the Feb. 8 premiere of her debut film, "Just Go With It," Brooklyn Decker, the Sports Illustrated model and wife of tennis ace Andy Roddick, chose a Dolce & Gabbana number from the Fall 2010 collection. She let her dress do all the talking by adding simple accessories like Brian Atwood Maniac pumps and gold Finn hoop earrings.

A draped leopard-print dress and pointy-toe black pumps are wild enough, but Tamara Mellon upped the wow factor with a technicolor clutch. The chief creative officer and co-founder of Jimmy Choo sported this look for her company's fragrance launch at Saks Fifth Avenue on Feb. 9.

Jaclyn Smith donned a Roberto Cavalli dress from the pre-Fall 2010 collection styled with nude Prada heels and Bottega Veneta clutch at AARP The Magazine's 10th Annual Movies for Grownups Awards on Feb. 7. At 63 years old, Smith still oozes Old Hollywood glamour!

Photos: Getty Images (3)

PEEKABOO:

At the Academy Awards nominations luncheon on Feb. 7, Michelle Williams was delightfully demure in a black silk blouse and tweed skirt from Chanel's 2011 Spring collection. The "Blue Valentine" star kept it simple with Sergio Rossi shoes and platinum pixie cut.

"Rabbit Hole" actress Nicole Kidman wore an Yves Saint Laurent halter dress with black fingerprint motif as she joined Williams at the luncheon. Her matching strappy sandals by Pierre Hardy and Prada clutch completed the look.

Forty-eight-year-old Demi Moore also opted for YSL to watch (and tweet!) the Super Bowl on Feb. 4 in Dallas. Her frock was from the Spring 2011 collection and featured fluttery sleeves. Worn with a pair of classic black pumps, she accessorized with a Dana Rebecca diamond necklace and suede Ferragamo clutch.

Meanwhile, find out what reality star also donned a leopard-print shift for a recent Harper's Bazaar cover shoot.

If you want to know how to wear animal inspired looks, see this partner video!