Mixing stripes is tricky business, but Sienna Miller, 33, looked nothing but chic in her skirt and blouse combo. (Photo by Patricia Schlein/Star Max/GC Images)
Miller wowed again in a striped knit midi dress and black heels. Her fashion risks are totally paying off! (Photo by Josiah Kamau/BuzzFoto via Getty Images)
Julianne Hough, 26, looked gorgeous in a black and white dress with a baby blue coat that brought out her amazing blue eyes. (Photo by Patricia Schlein/Star Max/GC Images)
Amber Heard, 28, showed off her personal style beside fiancé Johnny Depp. We love the "Magic Mike XXL" star's striped coat, boyfriend jeans and chunky necklaces. (Photo by RB/Bauer-Griffin/GC Images)
Style can get boring in the winter, but Emma Roberts, 23, dressed for the brisk California weather in a super cute long-sleeved maxi dress with a fun blue print. (Photo by Bauer-Griffin/GC Images)
Effortless Kate Bosworth, 32, looked stunning as usual in a vintage-looking seafoam silk gown and metallic heels. (Photo by DVT/Star Max/GC Images)
Jake Gyllenhaal was a total hunk at LAX in jeans, boots and a fun sweatshirt. Better posture and he gets an A+. (Photo by GVK/Bauer-Griffin/GC Images)
John Hamm, 43, rocked a retro look in a peacoat and newsboy cap. (Photo by JOCE/Bauer-Griffin/GC Images)
Kristen Stewart, 24, was the ultimate cool girl in slouchy white slacks and crisp button-down shirt. Sneakers and simple sunglasses completed her downtown look. (Photo by Josiah Kamau/BuzzFoto via Getty Images)
Is it getting hot in here? "Sexiest Man Alive" Chris Hemsworth, 31, looked the part while out and about in aviators and some sexy scruff. (Photo by Gardiner Anderson/Bauer-Griffin/GC Images)
Where can we get that coat? Reese Witherspoon, 38, looked fab in her cropped pants, booties and killer outerwear. (Photo by JOCE/Bauer-Griffin/GC Images)
Stewart bared some midriff in this edgy suit look. She kept her sneakers and sunnies, but added a swipe of red lipstick. (Photo by Raymond Hall/GC Images)
Fashion's favorite It girl Alexa Chung, 31, stepped out in a funky denim-and-fur getup. (Photo by Mark Robert Milan/GC Images)
Olivia Munn, 34, looked prim and proper walking her dog in a white dress, black coat and stilettos. (Photo by Raymond Hall/GC Images)
"Once Upon A Time" actor Jamie Dornan, 32, kept it simple and chic in jeans, a T-shirt and brown boots. (Photo by GVK/Bauer-Griffin/GC Images)
Say cheese! Gabrielle Union, 42, showed off her beautiful smile in a white top and skirt set. (Photo by Paul Archuleta/GC Images)
Jessica Alba, 33, was spotted in a super fun minidress and moto jacket. Tights and booties completed her adorable look.(Photo by Bauer-Griffin/GC Images)
We couldn't help but to add yet another photo of Sienna Miller. The actress looked adorable in jeans, booties, red bucket bag and fun floral beanie. (Photo by Josiah Kamau/BuzzFoto via Getty Images)
Nikki Reed, 26, stunned in a simple yet totally chic outfit that consisted of gray jeans, black booties and awesome shearling jacket. (Photo by Bauer-Griffin/GC Images)
Gwyneth Paltrow, 42, paired her flirty skirt with a wool coat and pink stilettos. (Photo by Raymond Hall/GC Images)
While the spotlight was on red carpet style this week with the highly-publicized Golden Globe Awards on Sunday and the Critics' Choice Awards on Thursday, some of the best celeb style was snapped on the streets.
Style star Sienna Miller, 33, absolutely killed it this week with too many swoon-worthy outfits to count. Some highlights included a mixed stripe ensemble, knit midi dress and a fun floral beanie.
"Dancing with the Stars" cutie Julianne Hough, 26, was all smiles in a black and white minidress with an uneven hemline topped with a baby blue wool coat.
Check out the gallery above to see our picks for sexy celeb style for the week of Jan. 11.