Celebrities spend half their lives in the makeup chair, and most will admit that’s where 50 percent of their gorgeousness comes from.

Here’s the behind the scenes tips from the pros who transform Hollywood’s a-list ladies. Grab a pencil and a piece of paper!

Get Reese Witherspoon’s pretty makeup - Exactly what to do:

• 1. Put concealer wherever you’re dark or red.
• 2. Blend rosy cream blush on cheeks and top with shimmery powder (Stern used CoverGirl TruBlend Luminous Loose Powder, $7).
• 3. Smudge bronzy cream shadow over your eyelids, then dust taupe shadow on top of that and along your lower lash lines.
• 4. Dot gray liquid liner between the roots of your upper lashes—they’ll look extra full—then smudge it out with a tiny brush. Do a couple swipes of brown mascara.
• 5. Go with pinky-peach lipstick (like CoverGirl TruShine Lipcolor in Peach Shine, $6, for both

Get Natalie Portman’s lush waves - Exactly what to do:

• 1. Work a blob of mousse through wet hair (Townsend used Matrix Vavoom Height of Glam Volumizing Foam, $14), then spritz roots with a volumizer (try Matrix Amplify Root Lifter, $15, matrix.com for salons).
• 2. Blow-dry hair with a small round brush to give the ends fullness and a bit of bend.
• 3. Wind two-inch sections from root to tip around a one-inch curling iron. Slide the iron out, then pin the curl up with a duckbill clip. Do your whole head. After 20 minutes take out the clips, flip your head over and brush it out. Flip your head back and you’re done.

Get Jennifer Hudson’s sexy nails - Exactly what to do:

• 1. Soften your cuticles (Lippmann used her own Cuticle Remover, $17), then push them back with an orange stick. Rub cuticle oil into nail beds and massage hand cream all over.
• 2. Swipe nails with a cotton ball moistened with polish remover (get the top edges too or polish will peel from there). File nails into a rounded square shape and do a base coat.
• 3. Apply two coats of dark red. On Hudson: Lippmann Nail Lacquer in Lady Is a Tramp ($15, both at lippmanncollection.com). Lay the brush a fraction of an inch from your cuticle; the polish will spread down without spilling over. Finish with top coat.

Get Anne Hathaway’s chic updo - Exactly what to do:

• 1. To smooth any frizzies and add shine, run a few drops of light serum over your damp hair. Gibson chose to use his styling hair sheets ($25).
• 2. Blow-dry, then wrap one-and-a-half-inch sections all the way around a curling iron with the clamp closed; it gives you a more natural wave.
• 3. Pull hair back into a high ponytail and secure with an elastic. Ruffle the tail up with your fingers, then pin your ends toward the elastic to form a bun.
• 4. Slide on a hairband, then do a once-over with a lightweight hairspray, like Gibson’s Beautiful Hold Hairspray ($32, both at sephora.com)

Get Julia Stiles’ Great Blowout - Exactly what to do:

• 1. Mix a dab of hair balm and hair serum in your palms (Evangelista applied Phytodefrisant Balm and Phytolisse Serum, $26 and $30, sephora.com); rub onto damp hair.
• 2. Run a wet/dry flat iron over three-quarter-inch sections to smooth (Evangelista used a T3 Wide Wet-or-Dry Flat Iron, $200, ulta.com). Then roll up hair in jumbo Velcro rollers. Do your whole head.
• 3. After 15 minutes remove rollers, finger-comb and spritz with shine spray.

Get Mary J.Blige’s loose beautiful curls - Exactly what to do:

• 1. Apply leave-in conditioner (try Kimble Hair Care Systems Thermal Leave-In Conditioner, $13). If your texture is coarse, run a flat iron through to smooth.
• 2. Grab a section, spritz with hairspray (try Kimble Hair Care Systems Shape and Hold Spritz, $23, both at kimblehaircare.com) and wrap it around a two-inch curling iron. Pin up the curls, allow them to cool, then let your hair down.
• 3. Brush through, then scrunch away for soft, non-crunchy volume.