Celebrity make-up fails: it's enough to make you blush! - Celebrities work hard to look good, but sometimes make-up can go wrong and under close scrutiny, even the slightest imperfection is brought into sharp focus. Take a look at the make-up messes captured by the camera.

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Kate Middleton - She has impeccable dress sense, but the Duchess of Cambridge could have spent a little more time on her make-up.

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Sofía Vergara - The actress veered a little outside her natural lip line here. Try a contour pencil to avoid this.

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Taylor Swift - Her white-blonde hair clashes with the singer's understated eye-shadow.

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Kim Kardashian - The socialite, who has her own brand of make-up products, has overdone the highlighter.

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Nicole Kidman - The actress has two shades across her face. Those with very pale skin need to be careful when using foundation and concealor.

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Angelina Jolie - The actress usually adopts a simple look, but here the lights and illuminator leave her looking a little too bright.

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Tilda Swinton - The lack of eye make-up gives the impression that her eyes are much smaller than they actually are.

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Jessica Alba - Special care should always be taken when applying concealer under the eyes. If the color is too pale, it will only highlight what it is supposed to conceal.

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Kelly Osbourne - A major fail! This two-tone look is more than a little odd.

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Miley Cyrus - The singer has uneven foundation.

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Tyra Banks - The supermodel ended up with a mis-matched neck and face.

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Christina Aguilera - A double dose of error: concealer and highlighter used in excess around the eyes have left an obvious ring.

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Jennifer Lopez - Excessive tanning and concealor do not match, so the area around her eyes has become streaked.

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Rihanna - Another example of how the wrong make-up can make eyes appear smaller.

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Taylor Momsen - Gothic overload. The singer used far too much black liner.

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Kerry Washington - Here the actress has two issues: a bad choice of concealer, and the color of the lipstick, which is too close to her skin tone.

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Mariah Carey - Are her cheeks a tad too blushed here?

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Tori Spelling - Again, a bit too much blush.

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Nicki Minaj - The rapper is known for her extravagant make-up style, and this image is a perfect example of her over-the-top application.

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Kristen Stewart - The actress looks washed-out and could benefit from a little concealer and blush.

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Cate Blanchett - Use too much powder and your face can disappear.

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Courtney Love - The singer has overdone the blush. This is a common mistake in people with very pale skin.

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Lil' Kim - The rapper is known to go wild with the face paint and often disrespects the natural contours of her face.

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Katy Perry - The singer has a paler than usual face here.

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Rachel McAdams - The actress could improve her look with a corrective base.

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Lisa Kudrow - Looks like she's used the same tone of eye shade, blush, and lipstick.

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Salma Hayek - Overuse of the eye pencil gives the impression of smudging along the bottom lashes.

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Scarlett Johansson - Likewise, the uneven edges of her eyes suggests that the actress had an unsteady hand.

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Catherine Zeta-Jones - Another example of a clear line between face and body.

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Rita Ora - The singer was probably going for a fierce appearance, but the excess highlighter in her T-zone has given the impression of oily skin and partly erased her left eyebrow.

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Nicole Scherzinger - An oil-free foundation would have been a safer bet. The result here is a little shiny.

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