How would i get Damian McGinty from Celtic Thunder to come to my sweet 16?

I am turning 16 this year and i really want Damian McGinty from Celtic Thunder to come! That would be so amazing if he say "happy birthday sweet 16" to me! AHHH! My aunt worked the Jingle Bell bash 2010at MSG and her boyfriend is a government agent so maybe they could help me but i'm not sure how they would contact him.. Any advice would be great!