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If you can't tell you who these four celebrities are, it could be a sign you are colour blind.
Opticians have hidden the spectacle wearing A-listers among the quirky images in order to raise awareness of the common condition.
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They have today warned those who struggle to identify the celebrities behind the spots may be colour blind and require further testing.
The team at Optical Express devised their own version of the Ishihara plate test, developed by a Japanese professor a century ago.
Opticians - Vision - Deficiency - Blind
Opticians regularly use it to identify colour vision deficiency, commonly referred to as being colour blind.
Answers at the bottom
Stephen - Hannan - Services - Director - Optical
Stephen Hannan, clinical services director at Optical Express, said the test was created to boost the profile of Colour Blind Awareness Day.
He said: 'Although a harmless condition, we want to raise awareness of just how common colour deficiency can be and stop it being overlooked in schools, the workplace and everyday life.
Stigma - Information - Condition - Colours - Life
'Removing the stigma and providing greater information on the condition will help those who struggle to distinguish between certain colours lead a normal and unrestricted life.
'Typical vision tests don't check for colour vision deficiency.
Ishihara - Test - Blind - Optometrist - Version
'However, if you are struggling to see the famous faces in our Ishihara test and think you may be colour blind, your optometrist can take you through a longer version of the Ishihara test or a colour arrangement task to diagnose the severity of your case.'
Figures suggest there are almost three million Britons living with the condition, even though scores are unaware they have it.
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