Like many fellow celebs including Sean Penn, Simon Cowell and Kim Kardashian, the Silver Fox has a look that attracts him and he rarely veers far from it.
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George Clooney is partial to sweet-looking brunettes
His plus one at a recent White House event was Amal Alamuddin, a beauty in the mould of his past loves.
The 36-year-old is a British human rights lawyer who represents WikiLeaks founder Julian Assange. Fluent in French and Arabic, she's a good match for George who has used his high profile to campaign on human rights issues.
His current love interest is thought to be beautiful legal eagle Amal Alamuddin
Other brunettes who've experienced the thrill of being squired around town by George include Italian actress Elisabetta Canalis and Sarah Larson, a sky diving cocktail waitress from Las Vegas.
In contrast Sean Penn's tastes seem to run exclusively to cool blondes starting with his first wife Madonna. Following his split with the Material Girl, he married Robin Wright Penn. His current love is South African star Charlize Theron, who combines Grace Kelly elegance with an androgynous, tomboy spirit.
Simon Cowell is all about slim, feminine brunettes. Before Lauren Silverman, the mother of his son Eric, there was Mezhgan Hussainy, Jackie St Clair and Terri Seymour. Incredibly he remains friends will all his exes and can sometimes be seen on holiday with several of the ladies at a time.
Simon Cowell with partner Lauren Silverman and ex Mezghan Hussainy
Of course, Kim Kardashian now has her dream guy in Kanye West and he couldn't been more taken with her or their daughter Nori.
But before her fiancé she stepped out with a series of well-built athletes and rappers, including Nick Cannon, now married to Mariah Carey, and a musician who has wrongly been linked with her sister Khloe. Rapper the Game told BBC1 Radio that he took Kim on a few dates to McDonalds long before her current relationship with Kanye.
Kim Kardashian with ex Ray J and love of her life Kanye West
With Kate Moss it's the tousled rocker look that makes her go weak at the knees. Her husband Jamie Hince bears more than a passing resemblance to Jefferson Hack, the father of her daughter Lila.
The fashion queen began dating The Kills frontman Jamie after "googling men". She recalled: "I went, "Ooh, I like the look of him." 'A friend set us up. He turned up, and we spent the next four days together."
Prince Harry with Chelsy Davy, Cressida Bonas and Florence Brudenell-Bruce
Kate's relationship with her ex Johnny Depp also began his penchant for waif-like blondes, while Leonardo DiCaprio's attention rarely strays far from athletic, fair-haired lingerie models. And the Hollywood stars share their liking for blondes with Prince Harry. Click on the photos to find out who else has a type.