It's officially Royal Ascot week, which can only mean one thing - absurdly eccentric hats bigger than your house.

So we bring you a spectacular array of head-turning headgear - and a few famous faces at the races - on the grounds of Ascot Racecourse below:

1. A race-goer wears a plume of feathers plucked from a peacock on her head.

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Stuart C. Wilson/Getty Images


2. Good old Lizzie Cundy had joked on Twitter that her extravagant red and white hat may be too big to fit in the car...

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Stuart C. Wilson/Getty Images


3. Even Piers Morgan adheres to the strict dress code in a grey top hat while Danielle Lineker wears an oversized sun hat.

Hat, Coat, Happy, Facial expression, Fashion accessory, Headgear, Sun hat, Costume accessory, Conversation, White-collar worker, pinterest
Max Mumby/Indigo/Getty Images


4. Can you guess which star is hiding underneath that giant blue feathered butterfly creation?

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Mark Cuthbert/UK Press via Getty Images


It's Jackie St Clair (you know, Simon's ex-girlfriend)!

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Stuart C. Wilson/Getty Images


5. A flamboyant female race-goer dons a giant pink, yellow and red rose headpiece at Ascot.

Happy, Petal, Pink, Summer, People in nature, Headgear, Fashion accessory, Costume accessory, Magenta, Spring, pinterest
Stuart C. Wilson/Getty Images


6. Prince Andrew and a dapper Prince Harry wore matching black top hats on the first day of Royal Ascot yesterday (June 17).

Clothing, Hat, Dress shirt, Coat, Shirt, Collar, Outerwear, Suit, Formal wear, Style, pinterest
Chris Jackson/Getty Images for Ascot Racecourse


7. A race-goer enjoys a tipple while wearing a giant yellow headpiece which matches her dress.

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Max Mumby/Indigo/Getty Images


8. Sir Bruce Forsyth wears a smart top hat (and avoids a windy wardrobe malfunction) while wife Merced Wilnelia dons an eye-catching lime green and pink creation.

Clothing, Smile, Green, Hat, Trousers, Coat, Dress, Outerwear, Formal wear, Happy, pinterest
Kirstin Sinclair for Ascot Racecourse


9. She needn't bother pointing... A race-goer wears a giant red rose and amuses members of staff at Ascot.

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Stuart C. Wilson/Getty Images


10. The problem with hats is that it's near impossible to greet one with cheek kisses! Zara Tindall and Princess Michael of Kent experience this problem first hand.

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Max Mumby/Indigo/Getty Images


11. Model and presenter Anneka Tanaka-Svenska wears an unusual creation adorned with roses - must make a trip to the ladies' very awkward.

Mouth, Pink, Dress, Headgear, Costume accessory, Fashion accessory, Waist, Necklace, Embellishment, Wedding dress, pinterest
Kirstin Sinclair/Getty Images for Ascot Racecourse


12. Another race-goer dons a white crocheted horse on her head to celebrate Royal Ascot.

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Stuart C. Wilson/Getty Images


13. And the shy and retiring Jackie St Clair's back, this time wearing a humongous exotic-looking flower aloft her head.

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LEON NEAL/AFP/Getty Images


14. And finally, anyone for Pimms?


Ladies' Day - one of the biggest days in the racing calendar - commences at Royal Ascot tomorrow (June 19).

Headshot of Naomi Gordon

Naomi Gordon is news writer mainly covering entertainment news with a focus on celebrity interviews and television.