Spot the difference: celebrities and their wax twins - Most people would like to take a photo with their favorite star. However, this is not always possible and sometimes it is necessary to resort to a second, more waxy, option.

These wax celebrity figures are extremely popular, given the number of visitors who go to museums to see them and take photos.

Click on the gallery and spot the difference between these stars and their wax twins!

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Shanghai, China - A visitor poses next to the wax figure of Bill Clinton, former president of the United States.

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London, England - The singer challenges his own wax figure to a fight.

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Hollywood, United States - The statue of actress Elizabeth Taylor playing Cleopatra, can be seen in Hollywood.

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Vienna, Austria - A visitor in a staring contest with actor Johnny Depp's figure.

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New York, United States - Journalist Anderson Cooper poses next to his wax twin. Can you spot the difference?

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Paris, France - Actor Nicolas Cage poses next to his wax figure at the Grévin museum in the French capital.

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Tokyo, Japan - Several visitors wave Union flags as they pose next to the wax figures of Prince William and Kate Middleton.

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New York, United States - In 2013, several wax figures of singer Whitney Houston were exhibited at Madame Tussauds in New York.

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Prague, Czech Republic - A wax figure of the iconic The Rolling Stones' frontman, Mick Jagger, getting the finishing touches before going on exhibition.

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Paris, France - The wax figures of actors Angelina Jolie and Brad Pitt can be seen at the Grévin museum in the French capital.

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New York, United States - Presenter Jimmy Fallon hugs his own wax figure.

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New York, United States - Musician Pharrell Williams poses next to his figure.

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Berlin, Germany - Women dressed as angels pose next to George Clooney's figure wearing a Christmas costume.

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Hollywood, United States - Director Quentin Tarantino points to his wax figure.

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London, England - A Madame Tussauds member of staff gives the finishing touches to the wax figure of Queen Elizabeth II.

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Los Angeles, United States - Always smiling, actress Betty White poses next to her wax figure. Can you tell who is who?

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Hollywood, United States - Pop icon Michael Jackson, immortalized in wax.

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London, England - Madame Tussauds workers pose for the photo as they pretend give US President Donald Trump's figure the finishing touches.

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New York, United States - Musician Ed Sheeran takes a selfie with his wax figure.

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Seoul, South Korea - A visitor happy to see Albert Einstein's wax figure at the Grevin museum.

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New York, United States - The wax figure of actress Scarlett Johansson was on display in Times Square, right in front of Madame Tussauds.

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New York, United States - Model Adriana Lima poses next to her wax figure, dressed as a Victoria's Secret angel.

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Paris, France - Fashion designer Jean-Paul Gaultier poses next to his figure. Can you spot the difference?

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London, England - Two visitors trying to find a heartbeat on British actor Tom Hardy' figure.

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New York, United States - Singer Carrie Underwood smiles at her figure.

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New York, United States - Tattoo artist Jessica V looks at Rihanna's figure before retouching it.

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Paris, France - Singer Céline Dion poses next to her figure at the Grévin museum.

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New York, United States - The wax figure of model and presenter Tyra Banks can be seen at Madame Tussauds.

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London, England - Model Kendall Jenner poses next to her figure.

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Madrid, Spain - Cristiano Ronaldo, who plays for Real Madrid and Portugal's national team, poses next to his figure.

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Shanghai, China - Mother introduces son to the figure of former president of the United States, Barack Obama.

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New York, United States - Sean "Diddy" Combs spots a crease in his wax model's tux.

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New York, United States - Singer Taylor Swift poses next to her figure. Both are wearing the exact same dress.

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Berlin, Germany - And of course, Madame Tussauds has a wax figure of singer Lady Gaga as part of their exhibition.

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