The 26-year-old actress captioned the back-and-white photo "#gucci" alongside a heart emoticon.
Lively has been a spokeswoman for Gucci's Premiere since the fragrance's inception in 2012. At the time, the Sisterhood of The Traveling Pants star appeared in a short film ad directed by Nicolas Winding Refn for the eau du toilette.
In addition to her endorsement deals with Gucci and L'Oreal, Lively will star in the 2015 film The Age of Adaline and is set to debut a lifestyle e-commerce site later this year.
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