they're unattainable and you can't talk to them anymore. he's the guy that's still approachable. >> justin's apparent humility seemed only matched by his talent and drive. >> i also felt like i was mozart's older brother. he's so good at what he does. he's so -- he hits on every cylinder all the time. >> it's like you're describing a savant. >> that's exactly what he is. he's a savant. >> it wasn't only justin's talent in the spotlight. so was his love life. >> britney spears and you. this is "larry king live" we don't fool around. >> we are dating. >> from the moment they confirmed the relationship to the moment it ended, they were a tabloid dream. despite it all, justin remained focused on the music, taking the lead in crafting the group's third album "celebrity." ♪ ever wonder why ♪ this take us on a ride which included a lead single that seemed to take aim at 'n