Effortless beauty? That's easy for Katherine, who turned heads in this sophisticated champagne design at the 2014 Emmys.
Two words: Crisp and cool. The star sports a belted Michael Kors LWD at NBCUniversal's 2014 Summer TCA Tour.
Now this is one for the money! Heigl channels her inner goddess in a ruched Maria Lucia Hohan silk mousseline gown at her film's Paris premiere.
Katherine shows off her playful side in this Michael Kors zebra-print dress at the One for the Money photocall.
At the 2014 NBCUniversal Upfront Presentation , the State of Affairs star kept it classic with a light pink dress and a sleek leather jacket.
Backstage she goes! The star attends the J. Mendel show at NYFW Fall 2013 in a flirty red-and-black frock.
The Greys Anatomy star picks an Escada mermaid gown for the 2007 Golden Globes.
One word: Bombshell! Katherine delivers the glam factor in an Escada gown at the 2006 Emmys.
Heigl goes sleek and sexy in this Hervé L. Leroux dress for the NYC premiere of One for the Money.
The star lets loose for Elle's 18th Annual Women in Hollywood Tribute, wearing a sexy black embellished Amanda Wakeley keyhole dress, with matching jewelry, embellished heels and clutch.
Katy selects David Meister's ruby red fan-pleated cocktail dress for the Life As We Know It premiere. As for her Swarovski heels? Rene Caovilla.
The former Seattle Grace doc is spotted in midtown Manhattan paying homage to her favorite color: Grey!
After months as a brunette, Heigl goes blonde at the Compassion Revolution animal foundation launch—and embraces the change with a corresponding taupe dress.
Katherine shows off her svelte figure in this Victoria Beckham dress at the U.K. premiere of Killers.
The actress nails it in this sunny Jenni Kayne dress for an appearance on the Late Show.
The actress attends the 13th Annual ASPCA Bergh Ball in NYC wearing a striped Lyn Devon dress.
The Ugly Truth star dazzles in this sequined Naeem Khan dress at her film's U.K. premiere.
A visit to the Late Show is the perfect excuse for Heigl to sport this figure-flattering electric-blue Reem Acra frock.
She may be at The Ugly Truth premiere, but this ensemble is nothing short of gorgeous! Katherine wears a dreamy ruched Lanvin dress with pearls by David Yurman.
The actress matches her lipstick to her overcoat and shoes at the premiere of Marley & Me.