There a couple of basic hairstyles for Rockabilly men. One of the most iconic would have to have been the ducktail haircut. It’s a symbol of the 50s that has captured the imagination and endured so well. The ducktail required combing the hair back to the middle of the head, then with the end of the comb, make a centre part. This required a fair bit of grease – hence the term “greasers”. This style quickly identified a guy as a rebel, a non-conformist.
Rockabillies also wore their hair short on the sides, longer at the back and with enough length at the front to create the upswept “pompadour". Another popular cut was the flat top
Women’s styles follow two general looks. The first is the moderate-length, layered cut. This style is always curly or wavy and is a classic look from the 40s and 50s. The other look is the most common among the Rockabilly devotees - the one made popular by Bettie Page, the 1940s and 50s pin-up model. The look is longer, generally created with blunt cut fringe across the forehead. The hair is generally styled to have soft waves while the fringe is straight and smooth.
Here is a great step by step tutorial on how to achieve retro hair in under five minutes.
This is a really nice tutorial for a longer, softer vintage look