Write for a moment
A generator can invent rhyme, but you know the people. “A birthday for Nia, who always wins game night” gives the model more to work with than “make a cool song.”
Keep the prompt kind and specific. A short concept is easier to translate into a brief video than a long plot with several turns.
Listen and look together
When an AI tool generates video and audio in one request, review both. Words may sound convincing while gestures drift, or a visual may be strong while the vocal is hard to understand.
A rerun can produce a very different take. Save a result you like before experimenting with a new prompt or stage.
Know your rights
Use photos of people who have agreed to appear. Avoid asking for an existing recording, a celebrity voice or a recognizable copyrighted verse. An original performance can still carry the energy of a genre without copying a specific song.