Forget about emerald! Red is clearly the color of the moment.

From the low-cut jumpsuits we've spotted multiple times on the red carpet to the hair color trend that's taking over Hollywood, stars can't get enough of the fiery shade. Now we are seeing red again, but this time as a standout accessory.

Hilary Duff popped by a book shop in La Verne, California on Tuesday to sign copies of her new book "True." Dressed in a black top, leather leggings and nude pumps, the 25-year-old actress topped off her ensemble with a bright red fedora. Duff's honey-blonde locks fell loosely underneath her hat and complemented her casual makeup.

Meanwhile, Swedish film star Noomi Rapace kept it cool in a similar look last night for the Vanity Fair Party during the 2013 Tribeca Film Festival. She swiped on a golden eyeshadow, berry lipstick and sported wavy ringlets that reminded us of this R&B diva.

Which star pulled off the red hat and loose waves look? Check out the photos below and tell us what you think.

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Who wore it better?

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PHOTOS:

hilary duff red hat

noomi rapace red hat

Check out our wavy and curly-haired icons:

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  • Mary Pickford, 1920

    MoviePix

  • Joan Crawford, 1928

    MoviePix

  • Annette Benson, 1929

    Getty Images

  • Greta Garbo, 1930s

    Popperfoto

  • Shirley Temple, 1936

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  • Joan Crawford, 1936

    NBCUniversal

  • Judy Garland, 1940

    MoviePix

  • Shirley Temple, 1940's

    Popperfoto

  • Gene Tierny, 1941

    MoviePix

  • Lucille Ball, 1941

    NBCUniversal

  • Lauren Bacall, 1944

    Time & Life

  • Rita Hayworth, 1947

    MoviePix

  • Raquel Welch, 1967

    AFP/Getty Images

  • Elizabeth Taylor, 1969

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  • Angela Davis, 1969

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  • Carole King, 1972

    Redferns

  • Jenny Agutter, 1978

    WireImage

  • Susan Sarandon, 1979

  • Jerry Hall, 1980

    Lichfield Archive

  • Brooke Shields, 1981

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  • Jennifer Beals, 1983

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  • Amy Irving, 1984

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  • Lisa Whelchel, 1985

    NBC

  • Andie Macdowell, 1987

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  • Sarah Ferguson, 1987

    Tim Graham

  • Elizabeth Berkley, 1989

    NBC

  • Julia Roberts, 1989

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  • Cher, 1989

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  • Rachel Hunter, 1990

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  • Mariah Carey, 1990

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  • Solveig Dommartin, 1990

    Terry O'Neill

  • Natasha Lyonne, 1990s

    Time & Life Pictures

  • Fay Masterson, 1992

    MoviePix

  • Nicole Kidman, 1993

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  • Fran Drescher, 1993

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  • Geena Davis, 1994

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  • Jennifer Lopez, 1994

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  • Melanie Brown, 1996

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  • Joan Osborne, 1996

  • Naomi Campbell, 1996

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  • Janet Jackson, 1997

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  • Rita Wilson, 1998

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  • Kelly Preston, 1998

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  • Pam Grier, 1998

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  • Minnie Driver, 1998

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  • Keri Russell, 1999

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  • Claudia Schiffer, 1999

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  • Jane Seymour, 1999

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  • Angela Bassett, 1999

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  • Debra Messing, 1999

    Getty Images

  • Shakira, 2000

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