Blake Lively and Gigi Hadid aren't just BFFs ... they dress alike too! Despite the falling temps, the latest trend to hit Hollywood is casting a ray of sunshine. 

Everyone from Renee Zellweger to Sofia Vergara has been sporting yellow in recent months. Typically towns that stick to dark neutrals, New York and L.A. are getting in on the action, flirting with the sunny hue.

So how can you master the tricky trend? Go for understated accessories, nude heels and muted makeup. Let the color do the talking!

Check out different ways to wear the look ...

Gigi Hadid Gigi Hadid had a sunny disposition in a Prabal Gurung gown at the NYC screening of 'All I See Is You.' We love that she pulled her hair back and wore subtle heels. But we would have ditched the bright lip for something simpler (photo: Splash News).

Renee Zellweger Shines In A Yellow Carolina Herrera Dress In a word ... perfection! We love how Renee Zellweger opted for light heels, a bare neck and minimal makeup with her Carolina Herrera dress at the 'Same Kind Of Different As Me' premiere in Westwood, California (photo: Splash News).

Sofia Vergara Shines In Yellow In June 2017 Live in a warmer climate? Try a feminine frock like the Martha Medeiros dress Sofia Vergara wore at 'The Female Brain' premiere in L.A. (photo: Splash News).