Leighton Meester, Hilary Duff, & Julianne Hough Are Fashionable Women at the Harper's Bazaar Party!

Leighton Meester, Hilary Duff, and Julianne Hough walk the carpet while attending the Harper’s Bazaar Celebration of the 150 Most Fashionable Women on Friday night (January 27) at Sunset Tower Hotel in West Hollywood, Calif.

Other stars in attendance at the event included Mr. Robot‘s Portia Doubleday, Nicole Richie, Orange Is the New Black‘s Danielle Brooks, actress Alia Shawkat, and fashion blogger Cara Santana.

FYI: Leighton is wearing a David Koma dress and Jimmy Choo shoes. Hilary is wearing a Tibi outfit, Schutz shoes, and a Lee Savage clutch. Julianne is wearing a Zuhair Murad outfit, Giuseppe Zanotti shoes, and an Edie Parker clutch. Portia is wearing a Michael Kors Collection dress, Le Silla shoes, and Eva Fehren and Yossi Harari jewelry. Cara is carrying an Edie Parker clutch.