Atlanta, Georgia - A female beluga whale turned a marriage proposal into the ultimate viral moment, capturing the hearts of millions on TikTok.

On Wednesday, Gavin Hulberg decided to propose to his girlfriend, Olivia Walsh, at an aquarium in Georgia.

As People reported on Friday, the romantic moment will probably be remembered forever – but not for the reason these lovebirds may have expected!

A viral clip of the proposal shared to TikTok reveals that the big question was "crashed" by a surprise guest.

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Just as Hulberg got down on one knee, the 16-year-old female beluga named Quin, who was swimming in a tank behind the couple, literally dropped her jaw!

The audience in attendance at the aquarium was clearly moved and held their breath. After Walsh said "yes" and hugged her new fiancé, thunderous applause broke out.

Quin, who almost seemed to be smiling in the background, elegantly swam away shortly afterwards.

Making the moment even more meaningful, the bride-to-be had been doing an internship with the beluga whale training team for the past three months, so Hulberg got in touch with her bosses to make the marriage proposal as extraordinary as possible – which clearly paid off!