We loved this sophisticated, Audrey Hepburn-style updo on Natalie Portman.
Naomi Watts sported retro waves to a screening of Diana.
We love this half-up, half-down look on Maria Menounos -- perfect for day or night.
This may be our favorite look of the week. Rachel Bilson's side twists and pretty waves are pretty much the only way we want to wear our hair, ever.
How can you not love Blake Lively's hair? The girl gets it right every time.
Every week, we round up the best of the best
in celebrity hair looks
From sleek and sophisticated to laid-back and casual, here are five styles from this week's red carpets (and sidewalks)
that knocked it out of the park.Click through the gallery to see all five looks.