There is one thing that all famous artists have in common. They bring people together and give them hope, happiness and inspiration. These artists unite people of all backgrounds from around the world and make us all forget our differences. Last Friday, I played in the Rod Stewart Concert at the Verizon Center here in Washington to over 18,000 people. Rod Stewart wore beautiful, bright colored outfits and sang and danced like he was born on stage. People rose to their feet