Red Dresses Return to the Red Carpet

[tiImage width=”623″ height=”400″ url=”http://img2.timeinc.net/instyle/images/2011/wrn/011111-red-dress-623.jpg” credit=”Splash News; WireImage; Jon Furniss/WireImage; Jason Merritt/Getty” align=”center” border=”1″ alt=”Rachel McAdams Red Dress Trend”]

Red returned to the red carpet as a welcome pop of bright color this winter. Cameron Diaz wore a scarlet one-shoulder knee-length dress by Azzaro last night to The Green Hornet premiere in Los Angeles; Rachel McAdams chose a Michael Kors crimson halter gown with leather trim for a recent Berlin appearance; Garcelle Beauvais attended a press event in a bold red sheath by Black Halo last week; and Carey Mulligan accepted her Best Actress award at the British Independent Film Awards last month in a red dress by Prabal Gurung. What is your favorite way to wear red? Tell us in the comments!

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Spotted: Natalie Portman's Engagement Ring

[tiImage width=”300″ height=”450″ url=”http://img2.timeinc.net/instyle/images/2011/wrn/011011-gala-lead-450.jpg” credit=”Getty Images” align=”left” border=”1″ alt=”Natalie Portman”]

Natalie Portman, Amy Adams, Carey Mulligan and more headed to Palm Springs, California on Saturday for the Palm Springs International Film Festival Gala. Portman, who showed off her stunning round engagement ring (inset), accepted the Desert Palm Achievement Actress Award at the event. “It’s been really wonderful,” said Portman (dressed in a Vionnet dress, Cartier earrings and a Christian Dior bag and shoes) of all of her recent success, from Black Swan to her award to her engagement and pregnancy. “I feel really lucky. I think I’m just trying to take it all in because it’s a lot.” See all the stars on the Palm Springs red carpet in the gallery.

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2010: The Year in Hair

[tiImage width=”623″ height=”400″ url=”http://img2.timeinc.net/instyle/images/2010/wrn/121610-hair-lead-623.jpg” credit=”Courtesy of Roc Nation, Jason LaVeris/FilmMagic.com, Sean Gallup/Getty Images, Jamie McCarthy/WireImage” align=”center” border=”1″ alt=””]When it comes to hair, 2010 was so much more than beachy waves and pretty updos. The colors were extreme—from Michelle Williams’s platinum pixie to Rihanna’s fire-engine red crop. And the trendsetters weren’t just on the red carpet, they were also on YouTube. (Thank you Willow Smith and Justin Bieber!) Click through our gallery to see all of the best moments in hair from the entire year. You won’t want to miss a strand!

2010's Top Celebrity Fashion Trends!

[tiImage width=”623″ height=”400″ url=”http://img2.timeinc.net/instyle/images/2010/wrn/120110-trends-623.jpg” credit=”INF photo; Pascal Le Segretain/Getty; Jon Kopaloff/FilmMagic” align=”left” border=”1″ alt=””]What was your favorite trend of 2010? Did you slip into a slim-fitting pair of tailored trousers, like Drew Barrymore? Did you pair your coziest socks with your sexiest heels, like Leighton Meester? Or maybe you took your short shorts from the gym to the office, like Gwyneth Paltrow. We’ve scoured the red carpets to round up the best fads of the year. Click through our gallery to see which celebrities jumped on the trend wagon—and which styles you were savvy enough to rock yourself!