John and Edward Grimes have become the nation's favourite/most-hated twins due to their controversial run of high-camp performances on The X Factor.
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Some might say Jedward are just a male version of The Cheeky Girls - and Transylvanian identical twins Monica and Gabriela Irimia's career path might provide a template for the Grimes boys. Apart from dating Lembit Opik, probably.
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Mary Kate and Ashley Olsen began their showbiz career at just six months of age, when they shared a role on Full House - and they later became huge pre-teen stars. Mary Kate's anorexia problems are well documented - and more recently there were suggestions that she was in a relationship with Heath Ledger at the time of his death.
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Sam and Amanda Marchant - better known as Samanda - were the bubbly blonde bimbos from Big Brother 8 - who went on to have a brief recording career and launch a skincare range. Things have gone a bit quiet recently though.
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You can see the resemblance between fashion designer Charlotte Ronson and her twin, DJ Samantha Ronson - although you'd be forgiven for thinking they'd turned up at fancy dress party as Kate Moss and Pete Doherty.
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The music world's most successful twins are probably Maurice and Robin Gibb, otherwise known as two thirds of the Bee Gees. Robin says he still hasn't got over Maurice's sudden death in 2003.
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Joel and Benji Madden from Good Charlotte are the emo world's best-known twins. Their taste in women is more Heat magazine than Kerrang though, one is married to Nicole Richie and the other dated Paris Hilton.
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Younger readers, or parents with young kids, will be familiar with Dylan and Cole Sprouse, the twins who play the title roles in Disney sitcom The Suite Life of Zack and Cody - abotu trouble-making brothers who live in a hotel.
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James and Oliver Phelps are far better known to the public by their fictional alter egos, Fred and George Weasley - who they have played since the first Harry Potter movie back in 2001.
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Australian twin sisters Jessica and Savanna Origliasso are the core of electro pop act The Veronicas, whose '80s retro sound is styarting to win fans in the UK as well as their native land.
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