Check out the bold hair colors preferred by the stars.
Posing at a Los Angeles party in 1998.
PHOTO: Pregnant Gwen Stefani Snaps Selfie In Skin-Tight Outfit
Posing with her award at the 2000 Golden Globes in Beverly Hills.
Attending a 2009 news conference for "Whip It" in Toronto.
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Appearing at the 2010 Grammy Awards in Los Angeles.
Attending the 2011 Metropolitan Museum of Art Costume Institute Benefit in New York.
Posing backstage at the 2011 American Music Awards in Los Angeles.
Arriving at the 2011 American Music Awards in Los Angeles.
Speaking during a 2012 news conference in Los Angeles.
Arriving at the 2012 BAFTA Awards in London.
Arriving at the 2013 Metropolitan Museum of Art Costume Institute Benefit in New York.
Attending the 2013 British Fashion Awards in London.
Attending the film premiere of "Her" at the 2013 Directors Guild of America in Hollywood.
Posing backstage after 2013's "The X Factor" finale in Los Angeles.
Arriving at the 2014 Grammy Awards in Los Angeles.