Sienna Miller shows her girl-next-door side with a romantic half-up half-down hairstyle that's slightly tousled for a relaxed look. Front pieces framing the face keep the look soft and feminine.

Get her look: Make a middle part and create waves all over the head with a medium-barrel curling iron. Tie hair back into a half-updo, then pull out waves in the front with the tail of your comb or your fingers.

Bangs instantly add youth. Christina Ricci's bangs are cut straight at brow level for an eye-framing effect and then slightly taper down as they reach the temples.

Get her look: Blow-dry bangs straight using a comb, holding the dryer above your hair so bangs lay flat on the forehead. Avoid using a round brush to prevent puffy bangs. Blunt bangs like Christina Ricci's are a great way to show off those eyes, so further define your peepers with dramatic liquid eyeliner.

Paris Hilton sports a sweet chin-length bob worn with side-swept bangs at the Grammy Awards. Subtle height at the crown and the pretty flipped ends give this 'do a retro vibe.

Get her look: Blow-dry hair using a medium-size round brush, lifting hair at the crown for extra volume. Blow-dry bangs forward by pulling the brush over the face, then make a part along the arch of one brow and sweep the hair to the side. Use a large-barreled curling iron on the ends to give a little flip. Tuck hair behind ear and finish with a mist of hairspray all over.

Katie Holmes' uber sweet rounded chin-length bob is the perfect frame for her oval face. Ask your stylist for a slightly shorter length in the back with very subtle layering all over.

Get her look: Apply relaxing balm over wet hair from roots to ends, and comb through to distribute evenly. Make a side part and blow-dry straight with a flat brush. Finish by tucking one side behind the ear then lightly spritz with hairspray.

Zooey Deschanel wears her long dark hair straight with eye-framing blunt bangs at the "Yes Man" premiere in Rome.

Get her look: Apply a small amount of hair polish to towel-dried hair. Blow-dry the bangs using a vent brush -- not a round brush -- to avoid overly puffy bangs. Next, dry the rest of the hair with a round brush, adding height to the crown by lifting hair at the roots. Slip on a feminine hair band.