To dream of Karaoke represents a situation where you are noticing everything it takes to be successful or special. You may be paying a lot of attention to what other people are doing that you want to do yourself. Paying close attention to details that you’re copying for yourself.
Mimicking someone else’s behavior or actions.
Alternatively, it could also reflect you or someone else that is pretending to be famous.
Example: A young man dreamed of singing . In waking life he was spending a lot of time daydreaming about being an actor and all the things he could do if he was famous.