Maddox Jolie-Pitt
The little guy's signature fauxhawk was topped with a colorful highlight when his famous fam hit the 2008 Venice Film Festival.
Kate Hudson
Hudson died her blond locks for a scene in the 2009 romantic comedy Bride Wars costarring Anne Hathaway. Something borrowed, something blue...get it?
Adam Lambert
The always entertaining American Idol runner-up appeared on the cover of his debut album For Your Entertainment looking a bit black and blue.
Gwen Stefani
The No Doubt frontwoman went all out with the blue theme back in 1998.
Kirsten Dunst
The actress slipped into a bright blue wig for a music video art project in which she reportedly covered the 1980 song, "Turning Japanese."
Adrien Brody
The Oscar-winner added the blue streaks in hopes they would give some extra luck in the 2009 celebrity Grand Prix race.
Marc Jacobs
The fashion designer turned heads when he showed at Los Angeles Museum of Contemporary Art fundraiser in 2007 with a funky-colored buzz cut.
Marge Simpson
As far we know, Marge is the only blue-haired gal who has ever appeared on the cover of Playboy.