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Hallelujah AI Singing Avatar

Play video: Hallelujah AI Singing Avatar

VideoHeyGen, Leonardo AI, SunoTested 10/09/2026

Start frame en Leonardo, model AUTO  Style  DYNAMIC.

Prompt: A cute 3D animated boy singing passionately into a vintage microphone, dark brown hair, oversized white sweater with colorful floral embroidery, rolled-up beige pants, black Converse sneakers, standing on stage with blurred musical instruments in the background, Pixar Disney style, ultra detailed, soft lighting, cinematic, vibrant colors, high quality render. 

Music generate in Suno AI
prompt: Hallelujah (she/her parody version)
soft piano and acoustic guitar, gentle tempo, calming, ethereal harmonies, melodic

Avatar generated in HeyGen only with one photo (Leonardo AI 3D young boy singer)

Lipsync generated in HeyGen Avatar IV with Leornardo Ai image and Suno music audio file.

Final reel edited in CapCut.
The how
Reference
VID-0008
Model
Auto, Avatar IV, v4.5
Duration
42 s
Aspect ratio
9:16
Dimensions
1080 x 1920
Resolution
1080p
Frame rate
30 fps
Camera motion
Static locked-off camera. The framing never changes, and all the movement comes from the character: his head, his hand and his mouth.
Style
3D animation, Dynamic
File format
MP4
Steps
1. Start frame, 3D young boy singer generated in Leonardo AI
2. Music generated in Suno
3. Singing Avatar generated in HeyGen
4. Lipsync generated in HeyGen
5. Edited in CapCut
Expected result
A vertical 9:16 reel of about 41 seconds in which the 3D boy sings the full Suno song with his mouth, head and hand moving in time with the music. The warm stage stays stable behind him, and short captions appear on screen.
Tips
Change the character in the Leonardo prompt but keep the stage, the soft lighting and the Pixar style, so the look stays warm and consistent.
Try another genre in Suno, such as a lullaby or a gentle jazz piece, to change the feeling of the same avatar.
Reuse the same image with a new audio file to make a second reel without generating the character again.
Choose a song with a clear melody and steady vocals, because the lip sync follows the audio: we are talking about ai singing avatar.
Add short captions in CapCut so viewers without sound can follow the song.
Start from a vertical 9:16 image so the final reel needs no cropping.
Common mistakes
Placing the microphone in front of the mouth in the start image. Here it stands to the side so the lips stay visible.
Using a busy, sharp background that competes with the character. Here the instruments are blurred on purpose.
Using a different image for the HeyGen AI singing avatar than for the lip sync, which makes the face change between steps. Use the same Leonardo image in both.
Exporting the reel from CapCut without checking the lip sync against the audio first.
Use case
Lip Sync, Music reel, Singing avatar

About this prompt

Table of Contents

This AI singing avatar starts as a single image: a cute 3D boy with a vintage microphone on a warm, blurred stage. Four tools turn that image into a singing reel of about 40 seconds: Leonardo for the character, Suno for the song, HeyGen for the animation and CapCut for the final edit.

How the AI singing avatar comes together

The character comes first. In Leonardo, with the model on Auto and the Dynamic style, a Pixar-style prompt describes the boy, his floral sweater and a stage with blurred instruments behind him. The song comes second: Suno generated a soft parody version of Hallelujah with piano and acoustic guitar. HeyGen then joins both, using the image and the audio file.

Why one image is enough

HeyGen creates the avatar from only one picture of the character, and the Suno audio file drives the lip sync with Avatar IV. There is no filming and no animation by hand, and the character stays the same from the first second to the last because the whole video comes from a single image.

What makes the AI singing avatar work on screen

The stage helps. Blurred drums and guitars, warm lights and soft lighting keep all the attention on the face and the microphone, so the expressions read clearly. The vertical 9:16 frame fits phone screens naturally, and the finished reel shows the words as short captions, which also helps viewers who watch without sound.

Make your own AI singing avatar

Keep the same chain and change the ingredients: a different character in the Leonardo prompt, a different style of song in Suno, or the same image with a new audio file. Start with the image, because it sets the look of everything else. The full prompts and settings are in this card, and you can follow more AI video tests on the Keep Me Signed In YouTube channel.

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