To dream of karaoke is a demonstration of your overconfidence. You may be touting accomplishments or abilities more than you realize. Another meaning for karaoke in a dream is that you are not utilizing abilities or talents.
To dream of singing karaoke is an expression of joy at having recently found an outlet for your talents where they are appreciated. However, if you dream of trying to sing along to a karaoke machine but you can’t read the words, expect recent frustration to continue.
Dreams of karate represent fighting, that you are coming into your power, and that you have a desire to break through obstacles in your ability to defend yourself. This is also a dream about mental discipline, commitment, diligence, strategy and focus.
A black belt is a sign of mastery in art of defending yourself, and a white belt is a sign of a novice. Consider the feeling tone of this dream.
If your dream involved others demonstrating or using this system of self-defense, you should be prepared for a surprise obstacle to your long-range ambition or plans. But if you were learning or doing karate yourself, you can expect your current affairs to flourish.