Michelle Trachtenberg’s Bop Basics floral dress is one of those classic pieces that could easily be worn day or night. She wore hers to the Target Opening in East Harlem, dressing it up with Giuseppe Zanotti studded heels and a sleek bun.

We love the denim-on-denim look, and Katie Holmes did it right. A chambray shirt tucked into bell-bottom jeans looked chic and stylish, while her Lanvin bag and platform heels only added to the appeal.

Ashlee Simpson’s bright yellow dress screamed Summer. She wore it simply and well, adding only an orange toned bag, embellished headband, and casual flip-flops. A great day-time look.

Naomi Watts looked so cute in her gray American Apparel jumpsuit while en route to the airport in NYC. She added a fedora, brown sandals, and a great black bag for a complete look. A jumpsuit like this one would be perfect for a day on the town, or even a trip to the beach.

An au natural Diane Kruger came out for the Lily Sometimes premiere in Paris. We love her understated, chic look. Leopard peep-toes and a teeny tiny red Chanel bag brought a feminine touch to her otherwise neutral menswear inspired ensemble.

Blake Lively filmed for Gossip Girl in NYC looking chic and colorful in DVF. Pierre Hardy booties and a red python bag provided the perfect accessories.

Olivia Palermo smartly wore Michalsky to the Michalsky Style Night in Berlin. Her polka dot dress was chic, simple, and looked great belted. What really made her look stand out, however, were her accessories. Snake Chrissie Morris for Michalsky heels, a Sondra Roberts rose clutch, and a sparkling bib necklace made for a night to remember.

Rachel Bilson did clogs—one of the season’s hottest trends— right. Her black ones looked cool as can be, and in combination with a black trapeze dress and a loose bun, Bilson looked effortlessly stylish. Cute as always.