Why 679 Is the Sound of Every AI On The Radar Video

There are over a thousand On The Radar freestyles on YouTube. Drake did one. Central Cee did one. Lil Mabu's blew up to 46 million Spotify streams. But when people make AI versions of the format — the ones flooding TikTok right now — they almost always use one song.

Fetty Wap's "679" featuring Remy Boyz.

Not a freestyle. Not a new track. A ten-year-old hit that has 520 million YouTube views, an RIAA Diamond certification, and a hook so recognizable that AI models trained on internet video already know what the booth is supposed to look like when it plays. The On The Radar set — green wall, neon sign, single mic — is one of the simplest backdrops in rap. One flat color, one light source, one logo. AI video models can reconstruct it cleanly because there is nothing complex to get wrong. And "679" became the default audio because Fetty Wap and Monty actually performed it on On The Radar Classics in April 2026, giving the trend a real source clip to build from.

The result is the biggest AI video trend on TikTok right now. TikTok has dedicated discovery pages for "AI On The Radar Trend," "Fetty Wap On The Radar AI Tutorial," and "How to Make an AI On The Radar Video." People are putting everyone in the booth — friends, celebrities, fictional characters, historical figures. Spider-Man and Iron Man rapping 679 together. A "Korean Fetty Wap" video that went viral on X with 45,000 likes before a Community Note revealed it was AI-generated.

Want to make your own? Put yourself in the On The Radar booth performing 679 on Summrs.

The Comeback That Made This Possible

The reason "679" is everywhere in 2026 is not random. It is the intersection of three things happening at the same time.

The "2016 → 2026" nostalgia wave. In late 2025, a TikTok trend started where people posted their 2016 photos, fashion, and music — the Snapchat puppy filters, the bright Instagram aesthetics, the Vine era. The trend exploded in January 2026 and brought the entire 2016 soundtrack back. Fetty Wap was the sound of 2016. "Trap Queen" went back to No. 37 on the Billboard Hot 100, a decade after its original run. "679" and "My Way" followed it back into rotation.

Fetty Wap's prison release. On January 7, 2026, Fetty Wap was released from federal prison to home confinement after serving just over half of a six-year sentence. He recorded his fourth album Zavier in three days — January 7 to January 10 — with features from Wiz Khalifa, Max B, G Herbo, Tink, and Monty. The Welcome Home shows in April sold out. The Nostalgia Tour launched in June and runs through December, hitting Brooklyn, Atlanta, Chicago, LA, and more.

The On The Radar Classics performance. In April 2026, Fetty Wap and Monty stepped into the On The Radar booth together to perform "679" for the Classics series. That performance gave creators an official source clip — Fetty and Monty in the actual booth, performing the actual song. It became the foundation for every AI version that followed.

All three hit at the same time. Nostalgia brought the song back. The release brought Fetty back. The performance gave AI creators the raw material. That is why "679" is the trend and not any other OTR freestyle.

This Is Different from a Regular On The Radar AI Video

If you have seen our guide on how to make On The Radar freestyle videos, that covers the format broadly — putting anyone into the OTR booth with any audio, any style. It is the general-purpose version.

The Fetty Wap 679 template is specific. It uses the actual "679" performance as the source. You are not generating a generic freestyle — you are stepping into the most viral version of the format with the song that defined it. The energy, the ad-libs, the Monty hook, the crowd reaction. It is a specific moment, not a blank canvas.

That specificity is why the 679 versions outperform generic OTR edits. People recognize the song instantly. The hook hits within the first two seconds. Recognition drives shares.

How to Make It

1. Go to the template

Open the Fetty Wap 679 On The Radar template on Summrs.

2. Upload a photo

One clear, well-lit photo. Front-facing or slight angle. Phone selfies work if the lighting is even — avoid backlit or harsh overhead shadow photos. The AI maps your face onto the performer in the booth, so clarity matters more than resolution.

3. Generate

The AI handles face detection, lighting matching against the green OTR backdrop, skin tone adjustment, and compositing. Processing takes a few minutes. No manual editing, no After Effects, no frame-by-frame work.

4. Download and post

No watermark. Ready for TikTok, Reels, Shorts, stories, or group chats. The 679 audio is already part of the clip.

The whole thing takes less time than watching the original performance.

Make your Fetty Wap 679 On The Radar AI video.

The Korean Fetty Wap Moment

On September 16, 2026, an X account posted a video of what appeared to be a Korean man performing on On The Radar with Fetty Wap's energy and delivery. The caption read "YALL SAW KOREAN FETTY WAP??? LMAOOOO." It racked up nearly 45,000 likes before a Community Note flagged it — the video was AI-generated, using Fetty Wap's original On The Radar performance as the base with the body digitally swapped for a Korean man.

Complex covered it. The creator admitted it the next day. But the damage — or rather, the proof of concept — was already done. The video was so convincing that tens of thousands of people watched it, shared it, and debated whether it was real before anyone checked.

That is where the trend is right now. The AI quality has crossed the line from obvious fake to "wait, is this real?" And "679" is the clip everyone uses to cross it because the On The Radar booth is visually simple enough for AI to nail.

What People Are Making

The format is wide open. The most common versions:

Yourself — The standard. You in the OTR booth performing 679. The one your friends will screenshot and roast you for.

Two friends — Put your duo in the booth. The Fetty and Monty energy works because the original is two people feeding off each other.

Fictional characters — Spider-Man and Iron Man rapping 679 has been going around since early September. Any two characters work. The more absurd the pairing, the more it spreads.

Athletes and celebrities — Same formula as every other face swap meme, but the OTR booth gives it a specific context. It is not just a face on a random video — it is someone performing on a recognizable platform.

Nostalgia posts — "Me in 2016 vs me in 2026" using the 679 audio. The song is a timestamp for an entire generation. Putting yourself in the booth performing it is the 2026 version of posting your old Instagram photos.

Why 679 and Not Trap Queen

"Trap Queen" is the bigger song. It has 974 million YouTube views to 679's 520 million. It went Diamond first. It charted higher. So why is the AI trend built on "679" instead?

Two reasons. First, the On The Radar Classics performance used "679," not "Trap Queen." The trend follows the source material. Second, "679" is a better format song. The hook — "I'm like yeah, she's fine, wondering when she'll be mine" — is short, catchy, and lands within the first few seconds of any clip. "Trap Queen" is a slower build. For a vertical video that needs to grab attention before someone swipes, "679" hits faster.

The Monty feature helps too. Having two people in the booth makes the visual more dynamic than a solo performance, and gives creators the option to swap two faces instead of one.

Related

• Fetty Wap 679 On The Radar AI Video Generator — Landing page for the 679 OTR template
• How to Make On The Radar Freestyle Videos — General guide to the OTR format
• AI Face Swap Video — General face swap for any video