Kim Kardashian and Kylie Jenner, Miley Cyrus and Noah and more celeb siblings who look so similar they could be twins

TURNS out there are a lot of celebrities with lookalike siblings, which makes us wonder how many times the sibling has been mistaken for the celebrity.

Megan McKenna, Cameron Diaz, Rachel McAdams, and Siannise Fudge are just a few of the celebrities with siblings who could be identical twins.

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Cameron Diaz may be retired from acting now, but maybe she also could have got her sister to stand in for her.

She attended a red carpet with her sister Chimene in 1998, and the pair share their distinctive blue eyes, cheekbones and stunning smile.

While Love Island fans couldn't believe their eyes when Siannise Fudge's sisters Amber and Shanade turned up in the villa and were the spitting image of their newly-famous sister.

Love Island fans were also surprised to discover it wasn't former pop star Rochelle Humes walking into the villa but her younger half-sister Sophie Piper.

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The pair share the same cheeky smile and quiet temperament, but Rochelle did not make an appearance in the villa.

Oscar-winner Rami Malek could easily be mistaken for his twin brother Sami - and the pair have pretended to be each other in the past - while Meryl Streep's daughters Mamie and Grace Gunner are also often indistinguishable from each other.

Megan McKenna and her sister Milly also share similarities, despite their seven-year age gap - in the same way that  Kim Kardashian and Kylie Jenner may have 17 years difference in age, but they could easily be mistaken for twins.

Kylie has long emulated her half-sister's style, and created her own mini me version - going on to eclipse her in popularity and fortune.

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Their long dark tresses, hourglass figures and exceptional good looks are twinning, along with their taste in famous rappers as romantic interests.

Kim is married to Kanye West and Kylie shares daughter Stormi with ex-boyfriend Travis Scott.

Singer Miley Cyrus, 27, may have lighter hair than her younger sister Noah, but they are both blessed with the same flawless complexion and similar facial features.

Noah, 20, who is also a singer, may try hard to rebel against Miley's wholesome image.

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But as Miley is the ultimate rebel already, that's led them to both create their own edgy style.

Miley's ex-husband, Liam Hemsworth, 30, is blessed with exceptional good looks and they appear to run in his famous family.

The Hunger Games actor shares the same blue-steel eyes as brother Chris, 36, who is Thor in the Marvel cinematic universe.

Actor Ben Affleck's younger brother Casey also followed in his artistic footsteps - and has the same famous jawline as his Batman brother.

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The 47-year-old two-time Oscar-winner, even cast his younger brother in his breakthrough movie, Good Will Hunting in 1997.

Casey, 44, may share Ben's looks, but he's a few inches shorter than his 6'4" sibling - standing proud at 5'9".

Singers Beyonce and her sister Solange both share exceptional musical talent, along with their stunning looks.

The almond eyes, perfect smile and flawless skin can only have been plucked from the same gene pool.

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When it comes to blonde bombshells, Jessica Simpson and her sister Ashlee are double trouble.

Heiresses Paris and Nicky Hilton are easily muddled, as they share the same lean physique, elegant style and designer wardrobes.

Nicky sometimes wears her hair dark, to distinguish her from her socialite sister.

The Fanning sisters - Dakota and Elle - have both grown from their on-screen debut in I Am Sam, as child actors.

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In fact, Elle played a younger version of Dakota's character - Lucy Dawson, and they still could likely share a role, as adults.

Demi Lovato's sister Madison is her double, as are Hilary Duff and her sister Haylie.

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One Chris Evans would be enough hunk for most people - but it turns out he has an equally hunky brother Scott.

While one James Franco would be enough Franco for most people, but he has a mini-me sibling in Dave - who also followed his brother into acting.

Will Smith and Jada Pinkett's daughter Willow and son Jaden are both following in their parent's footsteps with a life in the limelight.

They also share an athletic physique and resemblant facial features.

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Those unmistakable full lips and wide eyes - it could only be Angelina Jolie. Or could it? Her brother James shares the same characteristics as his famous sister.

Beauty and the Beast star Emma Watson, 30, has a lookalike sibling - and it's also her brother.

Alex Watson played a Hufflepuff Student in the film adaptation of Harry Potter and the Order of the Phoenix and built up a fanbase of his own.