Three great guys, also know as Hananiah, Mishael and Azariah (but not by many people). They turn up in Daniel chapter 1, and chapter 3. On both occasions they stand firm for what God wants, in the face of a society that is going the WRONG way. They even risk their lives for God - and He rescues them from a fiery furnace!
Along with Daniel they make great heroes for children and young people in Sunday School and other church clubs - so let's sing about them!