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The GG actress looked simply divine in a soft lemon halterneck floor-length dress by Gucci as she posed for photographers in NY.
And she made sure there were plenty of people crushing on her by revealing plenty of cleavage with a deeply plunging neckline.
Accessorizing simply with a pair of turquoise stone drop earrings and bangles, Blake Lively paired the dress with a classic fishtail plait - a la Chezza.
And she told Access Hollywood the reason for wearing yellow last night: "This dress was actually made for me by Gucci, so I was really lucky.
"I love yellow and it's actually an ode to my first meeting with Oliver [Stone, who directed Savages].
"I came in, in a yellow dress and we were talking about who the character should be, because she's very cynical in the book and in the script and he said, 'She needs to be THIS girl!
"This bright, hopeful, yellow girl, the sunshine girl' and so he had [a yellow] dress in the movie… so I thought I'd bring it full circle."