Beckham often changed his hairstyle. On this hairstyle, he is wearing a low-maintenance military haircut: crew cut. Crew cut is suitable for men who look for an easy maintenance, "wash & go" hairstyle.
To wear this cut, you have to trim it with scissors first approximately a fingers width from the scalp if you have a long haircut. Then you can use most standard electric hair clippers. Shear your hair very closely to the scalp but leave a little longer in front and on top of your head.
Hairstyle photos by greyjimbo.