As a child, I have sung in public several times as part of a group, and never faced a problem.
And then, I signed up for a solo performance. As I sat down on the stage, I noticed myself welling up with fear. Midway through my performance, my mind blanked out on the words of the song. A few seconds of awkward silence later, I apologized to the audience and left the stage with tears in my eyes.
It is much easier to sing among a group of singers. However, such group performances are never extraordinary, for there is plenty of room for mediocrity to hide. Every member of the group only needs to be better than the worst singer. And everybody in the group thinks somebody else is the worst singer.
To sing alone is to live upto the crowd’s and your own expectation – there is no room to hide. It is frightful to sing alone. Yet, facing this fear is the key to an extraordinary performance.