On lipstick: "My mouth is my favourite feature, which is probably why I love lipstick so much. I've always loved a red lip, but lately I've been really into nudes. I love lipstick.

"It makes me feel more 'done'. I wear a beige lip in the day, but red when I'm going somewhere. I just slick it on, I don't bother with lip liner."

On lipstick: "[Lipstick is] a major accessory that can change an outfit or even be the outfit. I love it - especially the red tones. For my first collaboration [with MAC] we did RiRi Woo, which was a matte, pigmented red and my fans really loved it."

On foundation: "My makeup artist Elan Bongiorno taught me about the importance of blending. She really works the base in and blends colours, shadows and blush, so when people ask me what shade I'm wearing, I'm always like, 'about ten different things!'"

On eyeliner: "I like a very natural eye makeup look, but when I wear black eyeliner, I like to add a little dark navy pencil on the inner rim - it makes my blue eyes look electric."

On going make-up free: "When I'm not working, I don't really wear makeup. I think it's a good chance to give the skin a break.

"I'm big on taking care of my skin so that I can go without makeup. I just grab and go, and what it looks like, it looks like."

On mascara: "For me, you can never have too much volume! I use three coats of mascara on my top lashes and one on the bottom. The best trick I have is to start as close to the base of lashes as you can - and then wiggle back and forth and move up and out through the lashes.

"Using an eyelash curler also makes a huge difference. I clamp at the base of my top lashes and hold for five seconds on each eye before applying mascara."

On lipstick: "My signature look is red lipstick worn with plain eyes, so I apply a light foundation, then on my cheeks I use blush or sometimes the same lipstick that I'm wearing. Giorgio Armani Rouge d'Armani Lipstick in 400, £25, contrasts well with my pale complexion and dark hair."

On blusher: "My trusted Julie Hewett ‘Cheekie’ Cheek & Lip Shine is a blusher for all seasons.

"It has an amazingly natural appearance – there’s no shimmer, only pigment and a gel like balm which is very stable and not greasy, so it doesn’t block the pores. It also doubles up as a lip stain."

On products: "I like to have my favorite lip balm by Dr. Hauschka. I always have Fig lip liner by Estée Lauder, I’ve been using that pencil forever.

"I really like this concealer pencil by La Femme, which is double ended, one side is a concealer and the other is a highlighter."

On hair: "I like washing my hair with Bumble and bumble's Sunday Shampoo. It's about the only shampoo that gives my hair that squeaky clean feeling that I had as a child.

"To condition, I use Kerastase Oleo-Relax Masque which isn't cheap, but it really works on my dry, over-styled hair."

On hair: "I rub a mixture of honey and salt all over my body to moisturise and exfoliate. You wash it off and your skin is gorgeous.

"Also, I love to eat an apple after a meal, just to cleanse my teeth – they always look polished afterwards."

On lipstick: "Revlon's Ultimate Liquid Lipstick in Top Tomato is a great shade of red that suits most skin tones. Its clever formula stays put so you don’t have to worry about smudging or bleeding.

"I like to apply KORA Organics Lipbalm first to hydrate my lips while I'm doing the rest of my makeup. Then, a slick of Top Tomato is my last step."

On blusher: "I always have on blush, even when I'm not wearing anything else—it makes me look alive. It's the first thing I put on when I wake up, and he [husband Geoffrey Arend] just thinks I have naturally flushed cheeks!

"I like Make Up For Ever cream blush; it blends into my skin really nicely."

On lipstick: "I always carry lip balm and lipstick. Lipstick is a very important beauty product because I find that lips are the most beautiful feature of anyone's face."

On playing to your strengths: "It took me forever to allow my makeup artist to do bright red lips! Sometimes it takes someone saying to you, ‘Do you know how beautiful your lips are? You should try wearing red lipstick.

"You can learn how to embrace your own unique beauty, celebrate your unique gifts and then have confidence around them."

On foundation: "My favourite foundation is Laura Mercier Crème Smooth Foundation. I love the creamy consistency, as my skin is rather dry. Plus it has wonderful coverage to hide any imperfections."

On blending: "My best makeup secret is learning to blend. I love using a sponge like a BeautyBlender and getting it damp first.

"You end up using a lot less foundation if you dampen the sponge before you blend, and then you get kind of dewy. So, that's a good makeup artist secret!"

On eyeliner: "Eyeliner shapes the eyes and gives it definition," says Jennifer Hudson's make-up artist Tia Danztler. "One reason we use it is because Jennifer has really thin lashes. The liner brings you to her eyes."

On cover sticks: "I don’t like to wear too much makeup so I’ll often just do it myself. I learned all the tricks during my modeling years—like never use foundation all over, just use something to cover imperfections. I prefer to use cover sticks, like Secret Camouflage by Laura Mercier."

On budget products: "My favorite cheap beauty product is baby powder. I use it on my hair to give it a dry tousled look. It works magic. Better than any dry shampoo out there.

"Once you put a little bit on your roots and run it through your hair, make sure to shake it out so your hair doesn’t look white!"