Dream about singing out loud signifies your need to vent off your frustrations and get things out in the open. You are being too passive and need to take a more active role in a situation. You are in total control of a situation and are exercising authority in both personal and business matters. The dream is an admonition for unfocused energy. You need to rearrange some of your ideals in order to find a solution to a problem.
Singing out loud dream is a hint for your inability to cope with a situation. You are lacking support in your life. You may lack understanding in a situation or find that a current problem is overwhelming. Your dream is sadly a warning alert for your coldness toward a person or vice versa. You are trying to suppress your anger, but it is just too much to keep in.
If you dreamt about singing out loud:
If you are attending any kind of party or social gathering, be prepared for the temperature between you to rise dramatically. You will both feel able to share your emotions in a positive and possibly passionate way. After this you may even become a permanent item.