Happy Birthday — confetti falls, a smile grows.

The sample

What happens in the Happy Birthday sample.

A young man with wavy, shoulder-length dark hair, a denim shirt and a rainbow striped party hat holds a white frosted cake with thin candles alight. Balloons in orange, blue and yellow hang against a pale curtain behind him, and specks of confetti are already in the air. More confetti falls as the clip goes on. His face moves from a calm, closed-mouth look to a small smile, and by the end he is grinning with his eyes creased.

Almost nothing else changes. The hat, the cake, the candles, the shirt and the balloons all stay in place, and the camera does not move. The motion comes from the falling confetti, small shifts of his head and his growing smile. Since the sample opens on a photo that already shows the hat, cake and balloons, a birthday photo with those things in the frame follows it most closely.

The recipe

Happy Birthday, on paper.

Read from the effect catalog the app itself ships, so these are the settings your run will use.

The prompt

The exact prompt behind it.

King AI sends this text with your photo. You do not type it; it is shown so you can see what the effect asks for.

Do not include any elements that are not present in the original image.
All characters in the image sway left and right with energy, creating a lively atmosphere. The characters wear natural smiles.
Each character holds a cake plate with one hand, while the other arm swings side to side.
Camera angle: Must remain strictly fixed.
Element restrictions: It is forbidden to add any characters, facial details, position changes, or decorative elements that did not appear in the original image. ultra HD 8K realistic, smooth motion, realistic physics, highly detailed environment

Your photo

Photos that suit it.

One-tap effects have one input. The photo you pick is your creative control.

How it works

Running Happy Birthday in four steps.

Keep exploring

More Celebrations effects.