Baggy pants, skatepunk sneakers, and other youthful fashion touches made Kristian Leontiou (pronounced Lee-On-Tyoo) look like he was going to bust out an aggressive teen-angst anthem at any moment, but the poignant sounds of David Gray, Dido, and Damien Rice -- coupled with a blue-eyed soul swoon -- were what listeners got instead. The London native fell in love with music at a young age and was sure he wanted to sing professionally, so sure that he was out of the house, out of school, and funding his pursuit of fame with a variety of odd jobs at the age of 17. At first, label...