Updated Oct 10, 2026
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The short answer
To make a funny happy birthday video, add a photo of the birthday person and one of you (or one photo of both), then type a single joke about them: their name, their age and the habit everyone teases them about. The AI writes an original rap roast, adds a beat and two AI voices, and renders the two of you performing it, lip-synced, in about 3 minutes. A standard 12-second 720p video is 10 credits ($9.99 Single pack, or 5 songs for $29). There is no free preview, and a failed render is never charged.
A funny birthday video with the birthday person in it
The usual funny birthday video is a stock cartoon with a name typed over it. This one stars the actual birthday person. Their face, from a photo you already have, is on stage next to yours, rapping a short roast about them. It is the kind of clip that gets replayed three times at the party and lives on in the group chat.
You do not need to film, edit or know anything about music. You bring the joke; the AI writes the bars around it, makes the beat and syncs both mouths to the words.
How to make a funny happy birthday video
- Add two photos. The birthday person and you, one face per photo. One photo of the two of you together works as well.
- Type the joke. Tap the Birthday chip and write one line: name, age and the thing they will never live down. Up to 120 characters.
- Pick a stage. Hotel Lobby (orange) is the trend look. Studio Booth makes a roast sound like a real diss.
- Make it, then send it. Tap "Make our rap video", wait about 3 minutes, download the MP4 and post it where they will see it.
Birthday roast ideas to type
Swap in your own names. The more specific the detail, the bigger the laugh.
- The always-late one: "Happy birthday Kim, 31 today, will show up to this video 20 minutes late"
- The bad driver: "Ben turns 26, has hit the same parking pole three times"
- The phone addict: "Ava turns 24, screen time 9 hours, still says she is bored"
- The dad-joke dad: "Dad turns 58, tells the fish joke every single Christmas"
- The gym talker: "Theo turns 35, talks about leg day, has never done leg day"
- The forgetful friend: "Happy birthday Rosa, forgot her own birthday last year, we did not"
Good roasts are affectionate. Tease a habit, not who they are, and pick something they already laugh about themselves.
Why it beats a meme or an e-card
- It is really them. Both faces come from your photos, so it reads as a personal joke, not a template.
- It is written for them. The lyrics are built around your line, in the language you wrote it in.
- It is made for phones. Vertical 9:16 by default, about 12 seconds, easy to send on WhatsApp or post as a story.
- It is quick. About 3 minutes from photos to finished MP4, in a phone browser, no app.
Tips and limits
- Keep it to one joke. Twelve seconds fits one good detail. If you have three, make three videos.
- Use clear photos. Front-facing, well-lit, one face each. Sunglasses and side angles make the lip-sync weaker.
- Ask first. Only use photos of people who agreed to be in it. No celebrities.
- Watch before posting. The rap is AI-written, so check the name and the joke came out the way you meant.
- Everything is original. No real songs and no voice cloning of real artists; the voices are AI rap voices.
Related pages
Want something warmer? Make a birthday rap song instead, or a sung personalized birthday song. For a full back-and-forth roast, try the AI rap battle generator, and for a roast aimed at a friend any day of the year, the diss track generator.