good lord, she enjoys her performance and speaks her mind. how does it make her over-confident. She is not rude or behaved arrogantly with the rest or said that she was the best.
why do we all label a person as arrogant or having attitude or over-confident just coz they speak their mind, do not cry and make scenes or who are confident and behave that way.
She may not be the best singer but makes it up with her performance. She isnt the worst singer either.
its not wrong to feel that u are good as long as it doesnt affect others.