Cage debuted his fiery new hue at the New York City premiere of his film "The Sorcerer's Apprentice," reports the Daily Mail.
The actor, who usually sports a darker dye job -- allegedly! -- also added a bit of ginger to his graying beard, giving it a salt-and-paprika effect.
The quirky 46-year-old star is just one of many middle-aged Hollywood men who have found that rather than go gray, they're better off red.
Twenty-four-year-old John Travolta sported a jet-black pompadour in the 1978 hit "Grease"; now, at 56, he wears a shade of auburn (if that actually is his hair -- allegedly!) that would make "Mad Men" siren Joan Harris green with envy.
On the '90s sci-fi series "The X Files," Gillian Anderson played David Duchovny's redheaded partner. Mysteriously, the 49-year-old actor has mutated into an ex brunette, with matador red tresses that rival Rihanna's.
There's something out there, indeed... and it's called Miss Clairol.
And a newly 52-year-old Kevin Bacon (his birthday is today, July 8!) looks the same as he did when he starred as a rebellious teen in the 1984 classic "Footloose" -- only his hair has changed, transforming from woodsy brown to Woody Woodpecker.
Lay off the bottle, guys. It's all right to go white.
In related news, if you must go red, read StyleList's tips for doing it right.