Jennifer Hudson has undergone an amazing transformation since she shot to fame in 2006. Along with her dramatic weight loss, Jennifer also relies on a few essential beauty products for maintain her skin and hair. Jennifer washes her face everyday with Dermalogica Essential Cleaning Solution, $51. She explains, “My skin is sensitive, so I don’t mix products. I use all Dermalogica.”

Jennifer keeps it simple with her makeup routine. She uses the classic Maybelline Great Lash mascara and MAC Cosmetics Studio Fix Fluid (NC 45 and NC 55). “I blend two together to get the perfect shade.”

For her locks Jennifer uses Organic Root Stimulator Hair Fertilizer, “This keeps my hair healthy at the roots.”

While most people imagine celebs are busy pampering themselves in thousand dollar spas all day long getting high-tech facials, long massages and ritzy manicures and pedicures – some celebs are actually doing it themselves at home – just like us!

Courtney Cox admits to coloring her hair with a $9 drugstore buy, Clairol Natural Instincts Brass Free for Brunettes. She says it’s just as good as a monthly hair dye at an expensive salon because “it lasts for about 28 days, but only costs $9.”

After a bad experience with waxing at an expensive salon – Kourtney Kardashian now does her bikini-waxes at home. Not only does it save her money – but she save on time, “I could do a bikini wax on myself in 10 minutes.” That’s fast!

Lauren Conrad is also low maintenance when it comes to doing her own manicures. She so good at doing them herself – she can actually swipe her polish on with just minutes to go. Lauren confesses, “Sometimes I do my nails in the car on the way to events!”. LOL

Whitney Port has amazing skin – and when she steps out onto the Red Carpet she wants to make sure it’s flawless. That’s why she uses June Jacobs Radiant Refining Brightening Masque.

“I use my June Jacobs masque before events to make my skin glow. It’s my one go-to product,” says Whit.

Now that Hilary Duff has that pregnancy glow, she may not have to work extra hard to get perfect skin. But before she was pregnant Hilary shared her skincare regime with People Magazine. Here are some of her tips:

“I exfoliate twice a week and always use sunscreen.”

“Experiment with illuminating products. Fresh’s Twilight Glow and By Terr’s Exlir are nice and lightweight. I apply them under my foundation for a dewy look.”

“I use Laura Mercier’s Brightening Powder under my eyes and on cheekbones.”

Gwyneth Paltrow is a fan of spinach drinks from Organic Avenue and she likes to add agave syrup for a little sweetness. “The result is amazing. I imbibe them whenever I’m in NYC.”

Hilary Duff is now eating for two, so she’s been eating extra-healthy by adding tons of romaine to her diet. “I’m back on the glowing green drink and feeling great!”

Nicole Richie like to blend in apples, pears and aloe vera. “I always carry around a green juice, it provides a lot of energy while I’m running around.”

Model Miranda Kerr starts her day off right by having a green juice drink along with some oatmeal and berries. “I love spinach, avocado, lots of greens and broccoli.”

Actress Shenae Grimes works a hectic schedule – which makes eating right a difficult choice. Instead of relying on unhealthy fast food choices – or decadent catered lunches on set – Shenae has her food delivered by Fresh Diet. The gourmet food service delivers calorie controlled meals, plus snacks – to your door – just like that!

It costs only $35 a day- which isn’t bad considering you’re getting 3 meals a day and they’re all healthy!

With Jessica Simpson ready to give birth in 2012 – rumors are swirling about how she’ll lose the baby weight. Jessica has said her only weight goal is to not go above 200lbs. Weight Watchers is already putting together a $4 million dollar deal to have Jessica Simpson as a spokeswoman next year after she gives birth. While Jessica has gained weight over the years and struggled with the media’s backlash – she’s currently proud of her curves since she’s carrying a baby.

Jennifer Hudson is currently WW’s biggest spokesperson (no pun)!

What do you think of Jessica joining Weight Watchers?

Nicole Scherzinger likes to keep things hot! — when it comes to her manicure of course. Nic is the new spokeswoman for ImPress nails and she’s sharing her favorite new trend for manicures. Instead of painting all of your nails a boring solid color – Nicole spices things up by putting a press on pattern on her ring finger nail.

Nicole says “Nails are the ultimate accessory” and she’s proud to sponsor something that everyone can do! It’s easy and simple.

In the pic above Nic is wearing Ginger + Liz Colour Collection in Put a Ring on It and wearing a zebra print press on pattern in Dancing Queen.

Impress is available at local drugstores

Angelina Jolie is still considered the world’s most beautiful woman – even though she only years away from the 40 club! Her long time makeup artist Toni Garavaglia shares Angelina’s secret tips and favorite skincare products for looking young and beautiful!

Angie’s #1 tip is keep it simple! She prefers to look natural and classic with her makeup and skincare choices – and why would you ever want to mess with that face!?

To let her skin breath while still perfecting it – Angie uses Clé de Peau Beauté concealer, $70, on specific areas of her face. For those famous luscious lips she likes to play it down with a simple natural gloss with just a touch of color. She uses Chantecaille Brilliant Gloss in Charm, $32.

To keep her skin in perfect condition – Angie slathers on Colbert MD Nutrify and Protect Day age-defying cream, $95. While she isn’t into injections and major plastic surgery – Angelina experiments with the occasional skin treatment, like fraxel-laser treatments. Angie also NEVER uses soap on her face and always wears SPF!

For her long brown hair she dabs on Couture Colour Pequi Oil Hair Polish, $32. Angie likes to keep her hair long and dark, like her mother’s – so she dyes it regularly to get rids of the grays (already!?)

Katy Perry recently dyed her hair a shocking blonde – after toying with the color for weeks now. Katy’s hair has evolved from dark brown, to pink to now – strawberry-pink blonde.

Katy Perry’s Hair Dye Disaster

While her look is dramatic – it’s questionable how long Katy’s look will last. In addition to the new blonde color, Katy’s also chopped off several inches into an asymmetrical bob with longer pieces in the front and pink streaks at the root.

What Katy Perry Puts on Her Skin Before Bed Every Night