Blake Lively donned a black and white strapless Gucci Premiere gown this weekend at the Cannes Film Festival, stepping out on the red carpet for the Captives premiere with husband Ryan Reynolds. We've been following Blake's recent red carpet looks pretty closely over here, and besides that sparkly Chanel stunner, this just might be our favorite look yet. Don't even get us started on that diamond necklace. Anyway, Blake was the picture of Old Hollywood glamour in her stunning gown, but really -- does she ever not wow us on the red carpet?

Freida Pinto and Salma Hayek also sizzled at Cannes, both donning hot coral and hot pink gowns respectively. Does this mean summer is approaching? And of course, speaking of hot looks, the Billboard Music Awards last night brought our some interesting gowns, shall we say. We were partial to Lucy Hale's colorblocked Alex Perry frock, but that's just us! Jennifer Lopez looked pretty flawless also, rocking a sheer red Donna Karan dress. Click through the gallery above for all the best celebrity looks from the weekend.