Super-sleek, center-parted hair like Jessica Biel's can be difficult to pull off, unless of course you're an oval gal. "Clean and simple, flat-ironed hair doesn't work for everyone but it looks good on an oval because they can really wear anything," says Syfu.
Square face shapes can minimize the width of their face with swept-back, volumized waves, like this style on Maria Menounos. "The swept-back volume counterbalances your facial width, so it doesn't look as large and the waves help soften the angles of your face," says Syfu.
A grown-out bob like Olivia Munn's is another ideal style for those with a square face shape. "It automatically gives you a little volume and looks better because it's not so big through the sides," says Syfu.
Short or long, side-swept or straight across: Bangs are a fab way to soften up a heart-shaped face, as Rihanna demonstrates here. "Bangs work well with this face shape because they soften the corners of the face and reduce its length," says Syfu
Minimize fullness by giving your hair lots of height like Whitney Port. "These styles work great on a round face because the height de-emphasizes the roundness and makes it look squarer while the sleek sides make your face look narrower," says Syfu.