U.S. actress Emma Stone poses during the red carpet for the movie "Birdman or (The unexpected virtue of ignorance)" at the 71st Venice Film Festival August 27, 2014.
Actress Lupita Nyong'o poses with her best supporting actress award as she arrives at the 2014 Vanity Fair Oscars Party in West Hollywood, California March 3, 2014.
Cast member Jessica Alba poses at the premiere of "Sin City: A Dame to Kill For" in Hollywood, California August 19, 2014. The movie opens in the U.S. on August 22.
Singer Rihanna accepts the Most Desirable Woman award at the eighth annual Spike TV's "Guys Choice" awards in Culver City, California June 7, 2014.
Cast member Emma Watson arrives for the UK premiere of "Noah", Leicester Square, London, March 31, 2014.
Actress Chloe Grace Moretz arrives at the premiere of "The Equalizer" at the Toronto International Film Festival (TIFF) in Toronto, September 7, 2014.
Kiernan Shipka from the AMC series "Mad Men" arrives at the 66th Primetime Emmy Awards in Los Angeles, California August 25, 2014.
Pop star Taylor Swift, who has adopted a sexier look on red carpets, was named People magazine's best-dressed celebrity of the year on Wednesday.
Actress Blake Lively arrives for the Council of Fashion Designers of America Awards (CFDA) at Lincoln Center in New York June 2, 2014.
Actor Joshua Jackson and his partner, actress Diane Kruger arrive at the 2014 Vanity Fair Oscars Party in West Hollywood, California March 2, 2014.
Jennifer Lopez arrives at the 2014 MTV Video Music Awards in Inglewood, California August 24, 2014.