Old Hollywood glamour has never gone out of style, and it was the perfect inspiration for Antonio Corral Calero, Global Creative Director for Moroccanoil. Instead of red carpet waves from Hollywood's heyday, Calero wanted the throwback style to look a little less polished -- "as if she is sneaking away from her hotel the morning after a night on the red carpet." Here's how to get the slightly-disheveled glam look:

1. Combine Moroccanoil Treatment Light and Moroccanoil Hydrating Styling Cream to damp hair for shine and moisture.
2. Add Moroccanoil Root Boost directly to roots for maximum volume.
3. Rough blow dry hair upside down until completely dry. Then flip back and gently brush through.
4. Create a deep side part and apply Moroccanoil Heat Styling Protection to 1" sections of the hair. Use 1" curling iron to curl back of hair (3/4" barrel on top and sides) and mist with Moroccanoil Luminous Hairspray Medium.
5. Gently brush through curls for soft, bouncy, '50s waves. Apply a dime-size amount of Moroccanoil Hydrating Styling Creamto hands, then scrunch through top and sides to create roughed up, sexy texture. Finish with a hairspray like Moroccanoil Luminous Hairspray Strong for a long-lasting hold.

The sexy, graphic pieces at designer Narcisso Rodriguez's Spring '15 show needed just one thing to complete the look: effortless beachy waves. Tresemme's Paul Hanlon delivered with a style that anyone can achieve. Here's how to get the look:

1. Start with freshly washed and dried hair. Using a spray bottle, wet hair down from middle to ends and distribute Tresemme Climate Protection Mousse evenly throughout wet hair.
2. Divide hair into 2 to 3 loose braids and dry with a diffuser.
3. Undo braids and retouch ends using a medium to large curling iron to define the shape of the waves.
4. Spray Tresemme Thermal Creations Heat Tamer Spray all over to prevent damage and use a ceramic-plated straighter -- like Tresemme Salon Professional Flat Iron -- around the hairline to achieve a flattering wave movement.
5. Finish the look with Tresemme Smooth & Silky Anti-Frizz Secret Creme.
6. If needed, mist with Tresemme Climate Protection Finishing Spray for flexible hold.

Ponytails were everywhere this New York Fashion Week, but we loved the geometric lines of the low ponytails Antonio Corral Calero created for Moroccanoil at the Delpozo show. Here's how to get the sleek, modern look:

1. Combine the Moroccanoil Treatment Light and Moroccanoil Hydrating Styling Cream to damp hair to impart shine and intense hydration. Spritz Moroccanoil Heat Styling Protection to keep hair healthy and shiny.
2. Part hair in the middle and use Moroccanoil Flat Iron to create super-sleek, ultra-straight style. Avoid volume while straightening.
3. Take 2" piece from the front on both sides and bring together at the nape of the neck, underneath the hair.
4. Brush through hair with Moroccanoil Boar Bristle Brush and bring hair into a ponytail 1" from the ends.
5. Finish with Moroccanoil Luminous Hairspray Strong for long-lasting hold and sexy shine.

When you can't decide on a hairstyle, go with the one from Rachel Zoe's runway show. It combines side-swept hair, braids and a ponytail. Here's how to get the look:

1. L'Oreal Professional hair stylist Pepper Pastor started by prepping wet hair with L'Oreal Professionnel Densite and then blow-drying. Then, apply L'Oreal Professionnel Perfect Shimmer on the ends and use a flat iron to straighten.
2. Create a part that spans from ear to ear on your crown -- like a headband. Part the front down the middle, then divide each of those sections in half (four sections total in the front section) and clip them to get them out of your way. Pull the back half of the crown part into a low ponytail that lines up with your earlobes.
3. French braid the middle section of each side into a cornrow-like braid. Pull back both braids and pin them to the ponytail.
4. Comb the front section of the hair into a smooth swoop, covering the ears and bringing it back to the ponytail. Pin both sides alongside the braids.
5. Combine the strands you just pinned back with the braids to create a three-strand braid on top of the ponytail. Secure with an elastic.

Usually half-up hairstyles tend to bring '90s moms to mind, but not at the Zero + Maria Cornejo Spring '15 runway show. Here's how to get this decidedly non-frumpy 'do:

1. Phyto stylist James Pecis started by spraying Phyto Professional Workable Holding Spray from roots to ends. Then, blow dry the hair for a fluffy, almost static-electricity texture.
2. Make a deep part in the hair on the right side, swooping the hair across the forehead. Add Phyto Phytolaquie Light Hold Hair Spray at the parting. Using it on just the part will give this element a super clean, graphic finish.
3. For the knot in the back, divide the hair into four quadrants. With the top section held apart, take the left and right sections and tie a knot.
4. After the knot is secure, drop the top section over the knot and tie another knot on top using the same right and left section ends to hold everything in place.
5. Apply Phyto Professional Workable Holding Spray to finish the look.