Who Is This Little Boy?

I don't know much about YouTube so I tried to copy this link so I don't lose it somewhere. Does anyone know who this little boy is? He's amazing!

Little Boy Singing

I'm hoping I did this right...never mind, i found out. It's a boy named Declan Galbraith. He's older now, that video was from about 10 years ago i guess. But the songs he sings now are kind of odd. I don't really know what he's saying in them but I sure like that first one Tell Me Why from when he was little.