The Black Halo is the seventh studio album by American power metal band Kamelot. It was released on March 15, 2005, through Steamhammer Records. It is a concept album inspired by Goethe's Faust. Continuing the story introduced in Epica (2003), it is the second and final record in Kamelot's two-part rock opera about Ariel. Epica tells Part 1 while The Black Halo tells Part 2. Goethe's Faust is also broken into two parts. The Black Halo features guest appearances by Simone Simons (Epica), Shagrath, Jens Johansson (Stratovarius), and several others. The album was released on vinyl in the spring of 2009, along with Ghost Opera (2007).

Power metal is a subgenre of heavy metal combining characteristics of traditional heavy metal with speed metal, often within a symphonic context. Generally, power metal is characterized by a faster, lighter, and more uplifting sound, in contrast with the heaviness and dissonance prevalent in, for example, extreme metal. Power metal bands usually have anthem-like songs with fantasy-based subject matter and strong choruses, thus creating a theatrical, dramatic and emotionally "powerful" sound.