Holly and Dan have been married since 2007, and the This Morning star usually keeps her family out of the spotlight, but was accompanied by her husband to the big event.
WATCH: Holly Willoughby gives sweet birthday shout out to son Harry
While there, they met up with Holly's co-presenter Phillip Schofield, and while Holly dubbed the trio the "dream team" her fans noticed an uncanny resemblance between Dan and Phillip.
One joked: "Stunning Holly, has Dan morphed into Phil?" and another quickly agreed: "I thought the same thing, Dan is now a silver fox."
A third added: "Thought there were two Phillip Scofield's for a millisecond."
Fans noticed a resemblance
Other fans complimented Holly on how beautiful she looked in her gorgeous gown. One said: "Beautiful dress," while another complimented: "Honestly who allowed you to have a body like that you are absolutely stunning queen."
For her look, the presenter chose a stunning Ziad Nakad design for the occasion with a V-neckline and a fitted waist, teaming her look with Gina Shoes and pretty silver David Morris jewellery.
And as always, she shared a snap of her outfit on Instagram, too - captioning her post to fans: "NTA ready… let’s do this… thank you to my incredible glam team @patsyoneillmakeup, @danniiwhiteman and @cilerpeksah_hairstylist who waved their magic wands again…."
Holly and Phil recently returned to presenting This Morning following their summer break, and things have been a little different since their return.
Holly and Phillip were recently reunited
On Monday, the pair told viewers at home that after 18 months filming two metres apart from one another due to coronavirus restrictions, and guidelines set by the government, they would now be distanced by one metre on the show.
"We said that we had a bit of news for you. Remember this, the two metre stick that helped keep us safe for the last year and a half," began Phillip, with Holly adding: "Well goodbye to the two metre stick and hello to the one metre stick!" which prompted rapturous applause from the crew in the studio.
She added: "Oh my gosh, we are so close and yet still so far."
Phillip couldn't help but poke fun at the situation, admitting to viewers: "We're just randomly making up rules here, but this seemed like a good idea," before telling his co-star: "You still can't lick me."
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