King Charles III joins the stars out in London for David Attenborough's new documentary premiere
David Attenborough is marking his 99th birthday in a special way: with a new film.
The biologist's new documentary, titled Ocean with David Attenborough, comes out on his birthday next week (May 8).
To celebrate his latest film, Attenborough was joined by a horde of stars for a World Premiere event at the Royal Festival Hall in London on May 6.
From singers to models, and even a royal appearance, it was a star-studded night.
Scroll on to see who was there.
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Georgia May Jagger
Georgia May Jagger is enjoying a night off mum duty.
Jagger, who is the daughter of none other than Mick Jagger and Jerry Hall, wowed in a little black dress out in London.
In October, the model had a major life to share with the world: she welcomed her first child with partner Cambryan Sedlick.
King Charles III
Many stars joined Attenborough on the red carpet. But one of the most exciting guests of the night was none other than King Charles III himself.
The royal made his way down the red – or in this case blue – carpet in black tie.
Charles' appearance is not so surprising given he is renowned for championing the environment.
The King waved to onlookers.
The royal took the time to shake hands on his way into the event.
Charles' appearance at the World Premiere happens to fall on the two year anniversary of his coronation.
David Attenborough and King Charles III
Charles posed for photos next to Attenborough himself, with the pair matching in their best suit and bowties.
The two engaged in a chat while on the red carpet.
Penny Lancaster, who now, together with her husband Sir Rod Stewart is an ambassador for The King's Foundation, told 9Honey Celebrity at the event the King "was really ahead of his time".
"He was the king that was hugging the trees and talking to the plants, and people thought he was crazy.
"But in fact, we all know now that he was right, and if only we'd listened earlier."
Poppy Delevingne
Model Poppy Delevingne hit the red carpet with her baby bump on display.
In January, the model, 38, revealed to the world she is expecting her first child with her partner, billionaire businessman, Archie Keswick.
She wasn't the only famous Delevingne at the World Premiere.
Cara Delevingne
Poppy's sister, model and actress Cara Delevingne, made a stylish appearance.
Cara, who has modelled for the likes of Victoria's Secret and starred in movies such as Suicide Squad, arrived for the event in a daring sheer dress.
Poppy Delevingne and Cara Delevingne
Double the Delevingne!
The sisters posed together on the red carpet with their matching bird necklaces.
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