For those who are confident of success, there are no barriers. Imagine the following picture - you stand in front stage and after five minutes your way out. In the hall of many people and everyone will be closely looking at you for at least the first two songs. What emotions tear you in this moment? Many people need only submit such now, as blood begins to boil from the release of adrenaline. In the chest aches, occurs in the legs feel weak, and throat all dry so that it is difficult even to speak, not to mention sing. Familiar? Next - worse. At the time of your output comes panic.