RapDuo generates a birthday duo video with new rap vocals, a beat and movement. The recipient can perform with a friend, partner, sibling or parent from separate portraits or one photo together. Optional names, an age and one memory personalize the occasion. They guide the result rather than guaranteeing exact words, so listen to the completed greeting before sending it.
Updated
Hear the birthday format before choosing your gift
Play the existing birthday demo with sound to understand a short shared-stage performance. It is a public sample, rather than a personal preview of the people in your photos or a promise about a name, joke or voice.
The gallery also contains friends, couple and family videos. The detailed documented case concerns the friends demo and describes the evidence available for that asset. It should not be presented as a birthday test or a measured birthday success rate.
Choose an atmosphere for the birthday person
For a two-way friendly roast, choose the battle performance instead. Keep the joke about something the recipient enjoys laughing about. A birthday greeting can be warm without being a roast, and visual enthusiasm does not require publishing personal or sensitive facts.
Celebratory lobby duet
A warm birthday performance in a cinematic lobby setting, with the recipient and their co-star sharing a positive original rap greeting.
Use this ideaOrange studio birthday
The familiar orange microphone set with a birthday focus. Suits a quick group-chat surprise or a greeting from a friend who lives elsewhere.
Use this ideaBirthday recording session
A closer studio atmosphere with cool-colored lighting and a shared performance. Useful for a personal musical greeting with a calmer visual setting.
Use this ideaA warm birthday wish or a funny birthday rap
Choose the kind of greeting the recipient enjoys before selecting the stage. A shared memory gives a warm wish its subject; a familiar harmless habit gives a funny greeting its joke. Use the existing birthday performance for a shared shout-out, or the friendly battle for a two-way roast.
Warm birthday wish
Choose Birthday shout-out for an affectionate greeting. One memory or a reason you appreciate the birthday person gives the duet a personal focus.
Use this ideaFunny birthday greeting
Keep Birthday shout-out and add one habit the recipient enjoys laughing about. The orange studio gives the shared greeting the familiar trend setting.
Use this ideaFriendly birthday roast
Choose Friendly rap battle when both people should tease and answer each other. Add the birthday occasion and keep the rivalry affectionate; listen to the generated exchange before sending it.
Use this ideaPick the relationship and tone
Choose one relationship and one point of celebration. The generator creates the words and performance; a long list of facts is unlikely to fit a short greeting. Do not assume that a joke suitable for a private chat is also suitable for a work channel or public story.
| Your pairing | What makes it personal | Review before sending |
|---|---|---|
| Best friends or siblings | A shared memory or harmless familiar habit | Both sides of the joke feel affectionate |
| A partner | A milestone or everyday detail you value | The greeting suits a private or public audience |
| A parent or grandparent | A family memory, achievement or occasion | Names and any age sound correct |
| Coworkers | A positive contribution or familiar team moment | The recipient agrees to a public or workplace post |
| A pet birthday | The animal's personality and an owner or pet co-star | Use the pet performance and inspect animal anatomy |
Make the greeting without filming a performance
Prepare the birthday duo
Add recipient and sender portraits, or one shared photo. Keep faces clear and distinct. Use images with permission, and obtain parent or guardian consent for minors.
Choose the birthday effect
Select a birthday performance and the stage that suits the gift. Optional names, the milestone and one shared detail provide personal context; no complete lyrics or scene script are required.
Choose settings for the destination
Set model, available quality, duration and format before generating. Check the calculator and credit quote, and sign in to review your balance.
Generate and listen
Confirm the paid video. Watch with sound, check both faces and listen for the recipient's name, pronunciation and the tone of the words.
Download and deliver
Save the completed MP4 and test it in the intended chat, presentation or screen. Leave time before the birthday: processing is variable and there is no guaranteed party-deadline delivery.
Use recognizable photos, even from different places
Upload JPG, PNG or WebP, up to 10 MB per file. Each image must be 300 to 6000 pixels on both sides, with a width-to-height ratio from 0.4 to 2.5. Choose two separate references or one photo containing both subjects. Larger file size does not repair blur.
Separate portraits can bring a distant friend into the gift without arranging a new photo shoot. Prefer a clear front or slight three-quarter view, even light and a similar amount of face detail in each image. A shared photo should contain the intended pair rather than a crowded party group.
Avoid a tiny cropped head, covered mouth, dark silhouette or heavy filter. A birthday outfit in a reference can influence appearance, but the generated wardrobe may change. Check the completed face and clothing before presenting the result as a personal gift.
Treat names and personal details as guidance
An optional name, age or memory can make the greeting specific, but the generator may shorten, rephrase or omit it. A phonetic spelling may help pronunciation without guaranteeing it. There is no finished-lyrics approval stage before the paid video is rendered.
Personal details are optional and limited to 240 characters. The generator follows the selected site language by default. Details in another language can guide a different vocal language. Listen for changed wording and pronunciation: generated lyrics are not an exact transcript, approved script or guaranteed translation.
If spelling or an exact dedication matters, keep that wording in the written message accompanying the downloaded video. The generator does not provide a caption editor or exact on-screen text control. You can send a precise message alongside the musical greeting without relying on sung words alone.
Choose an affectionate detail instead of an embarrassment the recipient has not agreed to share. Listen for accidental negative wording, and check that a mild joke has not become harsher in the generated audio.
Choose for the screen where the gift will play
Standard, Fast and Pro currently generate at 720p. Ultra offers 480p or 720p. Available durations are 5, 8, 10, 12 and 15 seconds; formats are 9:16, 1:1 and 16:9. 1080p is not available for live generation.
Five seconds leaves little space for a name and a story. A 12- or 15-second setting gives more room for the pair, without promising a full song or exact verse count. Longer clips cost more. Save the file ahead of the event and check the sound on the device that will play it.
| Destination | Starting format | Practical check |
|---|---|---|
| A private phone message or story | 9:16 vertical | Both people fit and audio plays at a comfortable level |
| A square social post | 1:1 square | Faces and important gestures stay inside the crop |
| A TV or party presentation | 16:9 wide | The downloaded MP4 plays on the actual device |
| One clip in a longer birthday montage | The montage's chosen aspect ratio | RapDuo provides a short clip, without a built-in montage timeline |
Budget for the gift and any new attempt
Standard at 720p for 12 seconds costs 10 credits. The Single pack is $9.99 for 10 credits, enough for this setting. Prices are in USD before applicable taxes; the current quote controls the cost of other settings.
Personalized video generation requires paid credits, and there is no personalized preview before generation. Public demos are free to watch before purchase. Technical failures, timeouts and safety-blocked renders return prepaid credits automatically. A completed video with a creative result you dislike is not a failed render.
A birthday render follows the normal model, resolution and duration quote. A different take is another paid generation. One-time pack credits do not expire; optional subscriptions renew with billing-period credit expiry.
The deliverable is a short video with generated vocals and music, rather than an audio-only song commission, a released party track or a famous artist's voice. Uploaded tracks, voice cloning and source choreography are not selectable.
Use photos you are permitted to upload and get permission from the people pictured; minors require parent or guardian consent. Live generation sends images to a processing provider. Drafts save settings and personal details without saving uploaded photos. The published Privacy Policy explains photo and video processing, retention and deletion requests.
Send through the messaging or posting app you already use. Before a public or commercial use, review permissions, Terms and platform requirements. Original generated audio is not a blanket clearance for every use.
Calculate your video cost
- credits
- 10
- Pack purchase
- $9.99
- Complete videos
- 1
- Credits left
- 0
- Allocated cost per video
- $9.99
Estimates use current studio settings and USD pack prices. Existing credits may cover your video. Taxes, if any, appear at checkout. Packs never expire; subscription credits follow their billing period.
Questions before you create
Can the greeting say a name and age?
Add them as optional personal details to guide the rap. Exact wording, pronunciation and inclusion are not guaranteed, so listen before giving the video.
Can I appear with someone who lives far away?
Yes. Use separate authorized portraits. They do not need to have been taken together, and one shared photo is also supported.
Can it be funny without being cruel?
Choose an affectionate personal detail or a friendly battle. Keep the joke within the recipient's comfort and review the generated words before sharing.
Do I have to write a song or record myself?
No. Choose the birthday performance and add photos. Optional personal details guide an original rap, and the video includes generated vocals and a beat.
Can I preview my own birthday video for free?
Public demos are free to watch. A personal birthday video requires paid credits and has no personalized preview before generation.
Can I use another language?
Personal details in another language can guide the vocal language. Otherwise the generator follows the selected site language. Pronunciation and meaning can vary, so have a fluent listener review it.
Can I get only the birthday song?
The current output is an MP4 video with audio. A separate audio-only download and a full-length song are not offered.
Can I choose a famous birthday song or clone a voice?
No existing track, celebrity voice or recorded voice sample is selectable. The birthday performance uses original generated audio.
Is changed wording eligible for automatic credit return?
A completed creative result with changed words is not automatically a failed render. Technical failures, timeouts and safety-blocked renders follow the automatic credit-return rules.