Rihanna and Madonna: Gucci Gals

With the holidays just around the corner, our favorite stars are already starting to celebrate. And last night Madonna and Rihanna were spotted at Gucci’s swanky dinner at the Plaza Hotel.

The “Umbrella” babe and her “Material Girl” pal hammed it up for the paparazzi at the Tattoo Heart Collection launch to benefit UNICEF, with Madge sporting a frilly green sleeveless minidress with fishnet stockings and strappy heels, while Rihanna rocked a sexy lavender gown complete with a plunging backline.

And these two sirens weren’t the only big name Hollywood stars in the house - as “Gossip Girl” hottie Blake Lively and “Entourage” hunk Adrian Grenier also were among those stopping by for the festivities.

Earlier in the evening, Rihanna was all about supporting UNICEF as well, stopping by the Grand Army Plaza to help light the big holiday Snowflake along with Gucci creative director Frida Giannini.

Gossip Girls

Enjoy the pictures Rihanna and friends at the Gucci Tattoo Heart Collection Launch, as well as from the UNICEF Snowflake Lighting Ceremony (November 19).