Part of the Bee Gee trio, Robin Gibb died today after a battle with cancer. .Gibb had been hospitalized in London with advanced colorectal cancer. He later fell into a coma but awoke after his family sang on a daily basis at his bedside."As brothers we were like one person," Gibb told the Daily Mail last year. "Me and Barry have always been the principal writers of the Bee Gees' sound, and Mauric…