bigbang i'm the best

bigbang i'm the best I'm_(确信)I'm the best I'm the best中的best前为何加the Believe in yourself：I'm the best! I,m the best ,isn,t it? I'm the best colour of the rainbow family. I'm not the best,but the only one I'm the best looking boy in the world I'm the best colour of the world . I'm the best friend of the children . I 'm sorry .we can only be the best friend. I'm one of the best students in our school.