Style: White Hot Dresses

The sunny blonde hit the streets of L.A. looking easy and breezy in her empire waist Vanitas dress.

The California girl didn't break a sweat in her white jersey dress and towering wedges as she headed out in Los Angeles.

The actress took her lace Temperley dress down a notch with the addition of casual Keds slip-ons at a fashion event in New York City.

Instead of flaunting her famous physique, the actress stayed comfy and cool in her floaty Catherine Malandrino frock while running errands in L.A.

The budding fashionista cast a spell in her crystal-studded Chanel dress at the L.A. premiere of Harry Potter and the Order of the Phoenix.

Although she told PEOPLE that her dress was a "last-minute switch," the actress was the picture of easy elegance in her Parameter dress at a Hamptons screening.

The talk-show host flaunted her tan – and buff arms! – in a sleeveless Rebecca Taylor shift at a Hamptons benefit.

In N.Y.C. for her album release party, "Ms. Kelly" hit the town in a sparkling minidress and silver sandals.

The actress sprinkled a little "Stardust" on the streets of Manhattan in her Zac Posen halter dress and gold heels.

No wonder Jay-Z calls her "Little Miss Sunshine"! The singer lit up the BET Awards red carpet in a curve-hugging Hervé Légér dress.