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Cate Blanchett - The actress dazzled at the Cannes Film Festival in 2018, in this black lace dress by Giorgio Armani.

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Cate Blanchett - If you thought you'd seen this dress before, you're not wrong! Blanchett had already worn the Giorgio Armani creation to the Golden Globes in 2014.

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Rita Moreno - Rita Moreno won the Oscar for Best Actress for 'West Side Story' in 1962, and wore this dress made in the Philippines.

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Rita Moreno - Fifty-six years later, she donned the iconic gown once again at the 2018 Oscars, and looked fabulous.

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Keira Knightley - The actress appeared at the BAFTAs in 2008 in this stunning Chanel dress. This was actually also her wedding look!

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Keira Knightley - Knightley even modified the dress, adding long tulle sleeves to it for the Serious Fun Children's Network in 2012.

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Tiffany Haddish - On the red carpet for 'Girls Trip,' the actress wore this long white Alexander McQueen dress. Tiffany also appeared in the outfit when she went on 'Saturday Night Live.'

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Tiffany Haddish - And the actress wore the dress once again when she presented the award for Best Documentary at the 2018 Oscars.

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Kate Middleton - The Duchess of Cambridge is a real pioneer of recycling outfits.

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Kate Middleton - She wore the same Alexander McQueen dress in 2012 and 2014. The first time, she wore it with a belt and hat. On the second occasion, she wore no belt and a different hat.

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Kate Middleton - Another of Kate Middleton's stunning dresses, this black lace Alice Temperley frock was repeated in 2012.

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Kate Middleton - She wore it twice, appearing here at the premiere of 'War Horse.'

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Helen Mirren - The British actress wore this printed Dolce & Gabbana dress to the premiere of 'Hitchcock' in 2012. Like it? You'll be seeing it several times more.

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Helen Mirren - The actress wore the dress again in 2013, this time to the Chelsea Flower Show.

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Helen Mirren - Here it is again at the Jameson Empire Awards in 2013, where the actress paired it with a black cardigan, tights, and heels.

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Helen Mirren - Here, Helen Mirren wore the Dolce & Gabbana dress with a necklace and  heels to the Prince's Trust Celebrate Success Awards in 2013.

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Helen Mirren - At the Roundabout Theatre Company's 2014 spring gala, Mirren wore the dress again in a more casual and summery look.

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Anna Wintour - Vogue America's editor-in-chief Anna Wintour, wore the same leopard print coat to four different events in the same year.

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Anna Wintour - It appeared at a Stella McCartney show in 2012.

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Anna Wintour - Wintour attended a Fashion Week party, also in 2012, in the same coat.

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Anna Wintour - She also wore the coat on the front row at Nicole Farhi's show, where she sat next to actor Bill Nighy.

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Michelle Obama - The former First Lady of the United States is another example to follow when it comes to repeating looks. For the opening of the Olympic Games in 2012, Michelle Obama wore this beautiful white dress by J. Mendel Outfit.

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Michelle Obama - She wore the frock again in 2013 for a Christmas ceremony.

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Barack Obama - Barack Obama has no problem repeating outfits for formal occasions either.

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Barack Obama - However, unlike his wife, it seems that Barack Obama doesn't change his outfit at all! Michelle Obama once said that her husband wore the same tuxedo throughout his eight years in office.

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Barack Obama - And these photos appear to confirm it! Obama looks suave in the same jacket and bow tie, whatever the occasion.

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Barack Obama - In this photo, Michelle Obama straightens her husband's bow tie as they wait for the President of China in 2015.

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Barack Obama -

The pair looked dazzling in 2012 for a dinner with heads of state at the White House.

See also: Celebrity wedding menus: here are the foods they served

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