Sedu, Chic Hairstyles

Scarlett Johansson Straight, Brunette, Long Hairstyle

Rose McGowen Long, Straight, Red Hairstyle

Rachel Bilson's Long, Straight, Layered Hairstyle

Nicole Richie Medium-Length, Blonde Ponytail

Lindsay Lohan Romantic Updo for a Wedding

Kristian Alfonso Medium, Straight Hairstyle

Katie Holmes Short, Blunt, Brunette Hairstyle

Ashlee Simpson Sedu, Sophisiticated Ponytail

Carrie Underwood Chic, Blonde Ponytail

Carrie Underwood's girly ponytail is so easy to do. Steal her style:

1. This look works best on dirtier hair, because it gives your pony some grip. Rub texturizing mousse through dry hair and let it set.
2. Use your fingers to comb your hair into a low ponytail. Secure it with an elastic, and tug at the back of your head to add a bit of volume.
3. Smooth your bangs behind your ear, and mist hair with a light-hold hairspray.

See More Carrie Underwood Hairstyles

Scarlett Johansson Straight, Brunette, Long Hairstyle

Scarlett Johansson's sleek, straight brunette hair is a dramatic shift from her usual hairstyles, so try this style if you want to mix things up. To get her look:

1. To start, apply smoothing cream if you have wavy or curly hair and blow dry hair straight using a paddle brush.
2. Then, go over your hair with a straightener, taking your time and making sure the sections of hair are very small, so you can get it really, really straight.
3. Next, use a comb to make a neat part directly down the middle of your crown, all the way back.
4. Finish with a shine mist, to get that extra-glossy look. Then sweep your hair behind your shoulders, and you're good to go.

See More Scarlett Johansson Hairstyles

Rose McGowen Long, Straight, Red Hairstyle

Rose McGowen's sleek hair looks sweet and sassy thanks to the slightly turned under ends. Get her style:1. Distribute a smoothing cream throughout towel-dried hair. 2. Next, blow dry hair straight using a large round brush. Turn the brush under at the ends for a subtle curl at the bottom. Create a side part with a comb.3. Finish the style by applying a shine serum to the surface of your hair.

Rachel Bilson's Long, Straight, Layered Hairstyle

Rachel Bilson's sleek style is a great choice for straight hair. Steal her style: 1. If your hair isn't already straight, apply a straightening balm and blow dry hair. Follow up with a flat iron if needed to get it super-sleek.2. For more flair, do a zigzag part instead of a straight down-the-middle one.3. Smooth on a shine serum to finish the look. See More Rachel Bilson Hairstyles

Nicole Richie Medium-Length, Blonde Ponytail

Nicole Richie's low ponytail and sweeping bangs make a sophisticated style. Get the look: 1. Apply volumizing mousse to damp hair.2. Blow dry hair with a large paddle brush, brushing it under (with the brush under the hair as you pull it through). The paddle brush will help smooth out your hair. Blow dry bangs across forehead and off to the side.3. Use a straightening iron to smooth out 2-inch sections of hair on the sides, in front and in back. Lightly tease hair at the crown of your head for a little extra volume. Smooth top layer over it.4. Leaving bangs free, pull rest of hair back into a ponytail, based slightly above the nape of your neck and to the side, and secure with an elastic band. 5. For bangs, apply a small amount of hair wax to sweep them across your forehead and off to the side. Set the look with a light-hold hairspray. See More Nicole Richie Hairstyles

Mena Suvari Straight, Blonde Bob

Mena Suvari's sleek, retro bob is great for fine-haired ladies with bold personalities. Steal her look: 1. This 'do is all about the cut so ask your stylist for a chin-length bob that's textured at the ends with heavy, blunt-cut bangs.2. Blow dry hair sans product. (It should already be straight if you're attempting this 'do but if not, use a paddle brush and straightening balm to get it as straight as possible.)3. Run a flat iron through, 1-inch section by section, until hair is pin-straight.4. Smooth with shine serum and mist with light-hold hairspray.

Liv Tyler Brunette Updo

Liv Tyler's easy updo works best on straight, medium to long hair with long bangs. What to do: 1. Begin with perfectly straight hair (do a run-through with a flat iron if you must). Rub some shine serum between your hands and smooth over hair to get extra shine.2. Part hair to the side. 3. Tease roots at the crown for a little lift, spritz with hairspray and smooth over with a comb. 4. With the exception of your bangs, which should be neatly swept to the side, pull hair back into a mid-level pony. Secure with an elastic.5. Wind your ponytail into a bun and pin into place, tucking in any loose ends. Mist with hairspray.

Lindsay Lohan Romantic Updo for a Wedding

Lindsay Lohan's side chignon works great on day-old hair. To get the look: 1. Gather hair into a side pony, leaving half of your hair out at the front. Secure with an elastic.2. Curl ponytail with a 1-inch curling iron.3. To get a bit of texture, grab random sections of the ponytail and tease them with a comb, then gently smooth out with a brush. Mist with hairspray.4. Tie the ponytail into a knot, pinning into place with as many pins as it takes. If a few strands pop out, leave them. You want a slightly messy finish.5. Part the front of your hair in the center and gather the sides loosely back, wrapping ends that are long enough around the elastic to cover it. Pin into place.6. Set with more hairspray.

Lindsay Lohan Romantic, Brunette Updo

Lindsay Lohan's wispy low bun is perfect for date nights. Steal her look: 1. Blow dry hair straight with a round brush and apply shine serum.2. Backcomb (tease) hair at the crown of your head and set with hairspray. Smooth the top with a comb or paddle brush.3. Pull hair back into a ponytail at the nape of your neck, securing with an elastic and leaving out 2-inch sections (to frame your face) plus a 1-inch section of hair underneath.4. Wrap the sections of hair that were left out of the ponytail around a one-inch curling iron.5. Start making a bun by pulling the ponytail through the elastic -- but not all the way through. The end of the pony should be sticking out of the bun, close to your neck. 6. Wrap the section that was left out beneath the ponytail around the elastic to disguise it. Secure with a bobby pin.

Kristian Alfonso Medium, Straight Hairstyle

Kristian Alfonso's style is perfect for medium-length, straight hair on an oval-shaped face. How to get "The Days of Our Lives" star's look: 1. If your hair isn't straight, apply smoothing cream or gel and blow dry it out straight and smooth using a paddle brush. 2. Bend over and blow dry your hair upside down for several seconds, to give it a bit of extra body all over. 3. Part your hair off slightly to one side (whichever side feels most natural) and smooth it out again with a brush for a simple, gorgeous look. See More Kristian Alfonso Hairstyles

Kim Kardashian Half Updo for Prom

Kim Kardashian's long half updo hairstyle is fierce for straight hair and will stay put through hours of dancing. Steal her style:1. Start by sectioning off hair into two parts: the top half of your head in a horseshoe shape and the bottom half, which you will leave alone for now.2. Apply an ample amount of strong hold gel or molding cream to your horseshoe shape and tease the hair, starting at the back of your head and working your way forwards until you reach the inch before your forehead.3. With fine tooth comb, brush that remaining inch over your teased section and start sculpting back, spraying with strong hold hairspray as you mold into shape.4. Slick back the sides of your hair and pin back underneath the ends of the teased section, hiding the bobby pins.5. Twist a couple large sections from the bottom half of your hair around the barrel of a curling iron. Spray with hairspray as needed. See More Kim Kardashian Hairstyles

Kelly Clarkson Straight Half Updo

Kelly Clarkson's sleek half updo looks chic yet flirty -- perfect for a casual night out. Steal her look:

1. Whether your hair is straight or slightly textured, apply a straightening cream, then use a paddle brush to blow dry hair. Pull each section straight while you dry, as smooth locks are the key to this look.
2. Set and polish strands by smoothing over 2-inch sections with a straightening iron.
3. To create the Bardot-Bump, start by making a part on either side of your head. Next, gather the top section of hair that falls between the parts and lift vertically.
4. Tease the backside of this section of hair, then spritz with hairspray. Push slightly forward for height -- don't go overboard unless you actually like Snookie's pouf -- then pin into place with a few bobby pins.
5. Finish the style with some hairspray to hold in place.

Kelly Clarkson Straight, Brunette Bob

Kelly Clarkson's short, brunette style looks great on round face shapes. Get her look:

1. Mix a few drops of a shine serum with a straightening lotion, then apply to damp hair.
2. Blow dry hair straight using a round brush. As you run the brush through each section, turn it under at the ends to create the subtle bend.
3. Rub a glossing cream in palms then smooth over the surface of hair to polish the look.

Katie Holmes Short, Blunt, Brunette Hairstyle

Katie Holmes' short, blunt hair is a dramatic style if you're going to a formal occasion and want something a little out of the ordinary. What to do:1. To start, apply a straightening cream to damp hair or an anti-frizz serum if your hair is already stick-straight.2. Then, blow dry your hair straight with a paddle brush.3. Next, go over your hair with a straightener, making sure all the waves are out.4. Then, tease the hair at the back of the crown of your head with a comb (though nothing too drastic). Smooth the top layer of hair over the teased section.5. Finally, create a side part, and apply pomade or shine serum, and tuck hair behind ears to finish off the look. See More Katie Holmes Hairstyles

Katie Holmes Sexy, Brunette Bob

Katie Holmes' show-stopping bob is ideal for those with short hair that want a really dressy look. What to do:1. If your hair isn't already straight, apply straightening cream to damp hair.2. Then, clip up the top half your hair and use a round brush to dry the lower section, piece by piece. When the brush gets to the tips, twist your wrist at the end to curl it under slightly. Then dry the top section.3. Then, tease the hair at the crown of your head with a comb (only a little, refrain from tease-overkill).4. Smooth the top layer of hair over the teased section.5. Finally, create a side part -- make sure it's very severe -- then finish with a light holding spray so that the side part stays in place. See More Katie Holmes Hairstyles

Jessica Stroup Brunette Updo

Jessica Stroup's chic updo works perfectly on straight, layered hair with long, sideswept bangs. Steal her style: 1. If your hair is already straight, great. If not, just blow dry it straight with a paddle brush (use straightening balm if necessary).2. Gather hair into a bun, either straight back or to the side, leaving your bangs and a few side pieces out. Secure with an elastic and bobby pins.3. Make a deep side part with leftover pieces and flatiron them until they are super sleek.4. Mist with shine spray if you want an extra glossy finish. Then set the entire look with hairspray.

Ashlee Simpson Sedu, Sophisiticated Ponytail

Ashlee Simpson's sleek ponytail is just as chic as your friend's labor-intensive updo. Best of all, it's way easy. See how to do it:1. Mist your damp hair with a generous amount of shine spray. Use a fine-tooth comb to create a slightly-off center part that extends to the middle of your head only.2.Using the fine tooth comb, comb the parted hair slick to either side, then comb the rest back and collect it all at the nape of your neck (or make it a side-pony) and secure with an elastic.3. Cover the elastic with a strip of hair and hide the ends underneath the base using a pin.4. Brush out the tail with another mist of shine spray.5. If the ends of your ponytail aren't stick-straight, use a flat iron (your trusty Sedu, perhaps?) to get them looking perfectly sleek.