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Bulin 47 and Kevin Wai: The Story Behind the Speaker Freestyle

Who is Kevin Wai, how he met Bulin 47 outside a Madrid restaurant, and why their unplanned speaker freestyle turned into a global AI trend.

The Bulin 47 freestyle has two main characters: the artist who rapped, and the creator who held the speaker. Here's what we know about the duo behind the clip.

Who is Kevin Wai?

Kevin Wai (sometimes searched as "Kevin Way") is a social media creator known for walking up to people with his phone and a portable speaker and asking them to freestyle over a beat. The format is simple: no setup, no second take — just whatever happens in the moment.

The moment with Bulin 47

In early October 2026, Kevin spotted Bulin 47, the Dominican dembow artist, about to enter a restaurant in Madrid. He held up the speaker with a dembow beat playing. Bulin 47 jumped straight in with an improvised freestyle — gestures, rhythm and attitude — while passers-by gathered, laughed and filmed.

The contrast is what made it work: a polished artist giving a full performance to a stranger's bluetooth speaker on a random street corner.

Why it spread

  • Two uploads, two audiences. Both of them posted the moment, reaching Kevin's street-content audience and Bulin 47's music fans at once.
  • Instantly remixable. The speaker, the red-lit doorway and the crowd make a clear template, which is exactly what remix culture — and later AI — needs.
  • Sound-first platforms. Every reaction, duet and remix reused the audio, pushing the original further.

From viral clip to AI trend

Once the scene was recognisable, people began asking AI video models to recreate it with someone else as the performer. In the AI versions, Kevin's role — the speaker held up to the artist — usually stays, and the lead performer becomes the person in the uploaded photo.

That's what our Bulin 47 AI generator does: it keeps the scene and the energy and makes you the one freestyling.

Respect the originals

The AI trend is fun because the original moment was real. Support the creators by following and crediting them, use the official sound when you post, don't impersonate either of them, and label AI clips as AI.

Bulin 47 AI is an independent fan-made tool and is not affiliated with Bulin 47 or Kevin Wai.

Read next: What is the Bulin 47 trend? · How to make a Bulin 47 AI video