What you need to know this instant.

Lucky Stars: Leighton Meester in Miu Miu AND Prada

Courtesy of Miu Miu.

How good is Leighton Meester on Gossip Girl this season? I declare her the Joey Potter/Katie Holmes of the GG cast: she's managed to steal the whole show through her natural talent and charm.

Unsurprisingly, she stole another show on Tuesday night. At Miu Miu's premiere of the The Woman Dress—a short film created in part to promote the label's new Culte sunglasses collection (buy them here for $390)—Meester wore a gorgeous buttercup yellow, red and pink Prada cocktail dress, undoubtedly inspired by Wonder Woman. She also tried the Culte sunnies on for size. Leighton obviously has fun with fashion.

Click through our gallery to shop from—and inspired by—her look.

Keep up with the Lucky team on Twitter: