"What Have You Done" es el primer single del cuarto álbum "The Heart Of Everything" de Within Temptation, un tema de rock gótico y épico cantado junto con el artista de Nueva York Keith Caputo.
Las canciones del CD single What Have You Done de Within Temptation son:
1. What Have You Done (European Radio Version)
2. What Have You Done (Album Version)
3. Blue Eyes (Non Album Bonus Track)
4. Aquarius (Live at Java Island, Amsterdam)
5. Caged (Live at Java Island, Amsterdam)
Videoclip del single What Have You Done de Within Temptation
