Have you seen Old Navy's latest ad? A Jacksonville teen is responsible.

When you see the latest Old Navy ad on your TV, just know that it was inspired by a high school senior from Jacksonville.

Samuel Beasley did what most people do while on a break from work these days — started scrolling on TikTok — when he noticed something a few months back. He kept hearing the same catchy song, "Fly as Me" by Silk Sonic, everywhere.

A casual content creator himself, the Creekside High student decided to make a quick video poking fun at the earworm. The video features Beasley, shot from his phone's front-facing camera, bobbing his head in the breakroom to "Fly as Me" with the caption: "We about to get the most fire Old Navy commercial ever."

He posted the video and went back to work — he even thought about deleting it at one point. Then the comments started rolling in.

"It's really weird to think about how none of this would've happened if I deleted it," he said. "Normally, at most, my videos get about 1,000 views. I didn't expect half a million — and I definitely didn't expect Old Navy to see it."

Well, they did. And they DM'd him.

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Old Navy's ad agency sees Sam's TikTok

A team member of The Martin Agency — one of the advertising agencies that works with Old Navy — came across Beasley's video on their own For You Page.

They saw over 1,000 comments from users suggesting the sort of elements that would be in a typical Old Navy ad.

"Dads. Dancing. Everywhere," one comment said. "Slow-mo family jump," said another.

The agency took note and started scripting an ad based on the comments.

Amusingly, Beasley had to explain the interaction to his parents and why a major clothing company was consulting with him about their upcoming ad campaign.

"They're on TikTok and they use social media so they know what a DM is, but when I explained all this my dad, he was like 'that's not even one of your funniest TikToks,'" Beasley said. "I think they were in disbelief about the whole thing, but also were proud of me."

To date, Beasley's video has over 123,000 likes.

Old Navy launches ad 'written by the internet'

This month, Old Navy launched its latest spring line commercial, a culmination of the comments on Beasley's TikTok suggesting what should be in the brand's next ad.

The video flashes the TikTok comments on the screen as the suggestions come to life — including, slow-mo, dancing and, yes, a bunch of dads.

The ad opens with the disclosure: "*this ad was written by the internet.*"

"In celebration of internet culture, this campaign — the first of its kind for Old Navy — invites customers to help shape the brand’s advertising, giving them unprecedented access to collaborate at the highest level," a news release for the new campaign said.

Beasley said he hopes to see other brands following Old Navy's lead as far as internet savviness goes.

"I think it's really important to pay attention to youth. Companies and brands can see what's relevant to their audience," he said. "If they see what they [young people] are doing on TikTok, they know how to reach them. They can also seem more relatable and be on their level."

Old Navy has officially named Beasley an ambassador for the brand with the title of "creative firestarter."

“To be the most democratic and accessible brand we must listen to our customers and give them what they want. Even when it comes to how we are marketing to them,” Old Navy Chief Marketing Officer Jamie Gersch said of the campaign. “To see what Sam and our fans naturally inspired was truly remarkable. This campaign is just the start to how we’ll be bringing accessibility to our customers this year in new and different ways.”

The aftermath

Beasley graduates high school in May and is starting to think about attending college and what he wants to major in. He's always been interested in film and has toyed with the idea of a focus in marketing. He says the interactions with Old Navy and the company's ad agencies are inspiring him to seriously consider that path.

For what it's worth, he was named "Most unforgettable personality" in his school yearbook's senior superlatives last month.

He declined to share contract specifics, but says any money he brings in as an Old Navy ambassador will go toward college and future savings. A TikTok he posted Wednesday that is marked as an advertisement and tags Old Navy features the teen dancing in his room. He asks people in the comments to suggest what the brand should do next.

In another video posted to the Old Navy TikTok account, Beasley is featured telling viewers, "you guys remember when I made that TikTok ... and y'all left a bunch of comments ... Well, here's that commercial with your comments."

The company also invited Beasley to travel to Los Angeles this summer for an on-set commercial shoot.

"We'll be iterating on the 'Written by the Internet' campaign concept throughout the year and look forward to the co-creation process with our customers," a spokesperson for Old Navy said via email.

It will be Beasley's first time in L.A. and on a real film set.

"We look forward to collaborating with Sam as a creative consultant," a spokesperson said.

Emily Bloch is an education reporter for The Florida Times-Union. Follow her on Twitter or email her. Sign up for her newsletter.

This article originally appeared on Florida Times-Union: Creekside High senior responsible for concept behind latest Old Navy ad