RapZap / Guides
How to Make Your Own Bulin 47 AI Video From a Selfie
What You Are Making
The trend copies a street freestyle by the Dominican rapper Bulin 47, filmed at night in Madrid with Kevin Wai, a creator, lifting a portable speaker beside him. Spanish-language outlets reported more than 60 million views for the original, and AI edits that dropped new faces into the moment then spread on TikTok.
A Bulin 47 AI video keeps that idea and changes the person at the center. Ours is rebuilt from nothing: a red-lit doorway after dark, a doorman, a few onlookers and an invented friend lifting a round speaker. Your verse lasts about 8 seconds, and you laugh through the final 4 while the friend answers. None of the original footage or sound is used.

Beard and short curls

Red hair, same verse
How to Make Your Own Bulin 47 AI Video in Four Steps
The whole job takes a few taps on a phone browser. Nothing needs installing.
Choose one portrait
Use a sharp picture of yourself, or of an adult who said yes. It should show one face looking at the camera, with hair and shoulders in frame.
Upload it and confirm consent
Open the generator, drop in the JPEG, PNG or WebP file (10 MB at most) and tick the consent box. Swap the picture as often as you like, because nothing renders until you press start.
Pay and wait
Checkout runs through Stripe and costs $8.99. A status page then follows the render, and you are free to leave and return later in the same browser.
Save the MP4 and add the sound
Download the 720p file, open it in TikTok, choose “Dame Hombro” by Bulin 47 & Kevin Wai and set the start to 0:20. Turn on the AI-generated label before you post.
Which Portrait Gives the Best Likeness
This template frames you close, so your picture decides more than anything else. Fresh portraits taken in daylight beat old party shots every time. A Bulin 47 AI video keeps your face, hair and beard, but replaces your clothes with the scene costume, so there is no need to dress up.

Good: clear, front-facing 
Avoid: sunglasses 
Avoid: too dark 
Avoid: tiny face 
Avoid: group shot 
Avoid: covered face
- Face the lens, or stay within a slight angle of it.
- Keep sunglasses, caps, masks and hands away from the face.
- Stand near a window for soft, even light.
- Crop so the head fills a good part of the picture, at 512 pixels wide or more.
- Skip beauty filters and cartoon effects, since the model copies them.
Getting the Lip Sync Right
The mouth movement was made against a fixed slice of the song, so the start point matters more than people expect. Half a second of drift is easy to see. Set the sound to 0:20, play the first two seconds, and nudge it a fraction if the lips run ahead or behind.
The track never ships inside the file, because we do not hold the rights to it. TikTok licenses it for posts, so the finished clip stays on the right side of that deal. Catalogues change by app and country, so Instagram or YouTube may not offer the same song where you live.
| Part of the video | Comes from | Can you change it? |
|---|---|---|
| Face, hair, beard | Your portrait | Yes, by using another picture |
| Outfit | The scene | No |
| Red doorway and onlookers | The scene | No |
| Speaker friend | The scene, an invented person | No |
| Verse | Added by you when posting | Only by choosing the sound |
Common Problems and Quick Fixes
- The lips miss the words: the sound almost certainly starts somewhere other than 0:20. Trim it again before blaming the render.
- The face looks like a cousin rather than you: try a closer, sharper portrait with even light. Each render is also a new roll of the dice.
- Skin looks warmer than usual: that is the deep red lighting of the scene, and it affects every complexion.
- The upload was refused: pictures of celebrities, public figures and minors are blocked. Group shots also work poorly, so use one face.
- The render failed: the credits return to your browser once, automatically, so you can run it again. That is a credit, not a cash refund.
Other Ways to Do It
A dedicated page is not the only route. Here is what each approach really asks from you, including the ones we do not sell.
| Approach | What you supply | Reuses the original clip | Effort |
|---|---|---|---|
| Fixed-scene generator like RapZap | One portrait | No, the scene is newly generated | A few taps |
| Face-swap apps | One picture and a source video | Usually | A few taps, plus rights risk |
| General AI video models | Pictures and prompts you write | No | Many attempts to match the shot |
| Film it with friends | A speaker, a street and a phone | No | One evening, and it costs nothing |
If you want custom lyrics or your own location, a general video model is the better pick. If you want this exact look with no prompting, a fixed scene is quicker.
Sources
Report on the Madrid freestyle with Kevin Wai and its view count
De Último Minuto, checked November 5, 2026
Report on AI edits of the freestyle spreading on social media
N Telemicro, checked November 5, 2026
Common questions
What does a Bulin 47 AI video cost?
On RapZap it costs $8.99, paid once, with no subscription and no account. There is no free preview, so check the sample clips first.
Does a Bulin 47 AI video work on a phone?
Yes. Everything runs in a mobile browser, so there is nothing to download. Save the MP4 to your camera roll and post it from TikTok.
Does the video include the song?
No. The file is silent. Add “Dame Hombro” in TikTok and start it at 0:20 so the lips line up.
Can I use a photo of a footballer or another celebrity?
No. Many viral edits use famous faces, but RapZap refuses celebrities, public figures and minors. Use yourself or an adult who agreed.
How long is the finished clip?
It runs 12 seconds in a vertical 9:16 frame at 720p, sized for TikTok, Reels and Shorts.
Is this connected to Bulin 47 or Kevin Wai?
No. RapZap is an independent fan tool, and neither person is involved with it or endorses it.
RapZap is an independent AI rap video maker. No artist, record label, music show, NPR, COLORS, TikTok, Instagram, YouTube or other brand named on these pages has partnered with, approved or paid for RapZap. Hotel Lobby videos never contain the original Hotel Lobby song. Bulin 47 AI clips are fan tributes built without any original footage or recording, and have no tie to Kevin Wai or Bulin 47. Zombie couple clips are scenes we generate from scratch and have no tie to any app, template or creator connected to that trend. Rumpelstiltskin AI clips are fan tributes made with our own generated barn and dance; they borrow no footage or sound from the meme or from the 1987 film, and have no tie to RiFF RAFF or the people who started the meme. Outstanding Tiny Desk AI clips are fan tributes made with our own generated set and band; they borrow no footage or sound from the NPR performance or the meme, and have no tie to Charlie Wilson, The Gap Band, NPR or its Tiny Desk Concerts series.