While 18-year-old George Dennehy was born armless, he isn't letting that stop him from pursuing his dreams and sharing his passion with the world. Most recently, he's been receiving major attention for a YouTube video of his performance of "Iris" by the Goo Goo Dolls, in which he accompanies himself on the guitar using only his feet.I chatted with the web sensation to learn more about his love for music and the online reaction to his work."I think people see the willpower and determination and how much that performance meant to me -- and that song. I guess it touches people's hearts," Dennehy