Thomas Jacob Bergersen (born 4 July 1980, Trondheim, Norway) is a Norwegian composer, multi-instrumentalist, and the co-founder of the production music company Two Steps From Hell.

[3] Bergersen's compositions have featured in many motion picture campaigns, such as Avatar, Pirates of the Caribbean, The Twilight Saga, The Chronicles of Narnia, Harry Potter, Da Vinci Code, The Mummy, The Dark Knight, Tron: Legacy and hundreds more.

[4] He started his musical career as a demoscener, writing tracked modules under the name Lioz in the group Index.

[5][6][7] Bergersen worked with fellow Norwegian artist Boom Jinx on the 2007 trance single "Remember September".

[8] In May 2010, Bergersen and his business partner, Nick Phoenix, released a debut public Epic Music Two Steps From Hell album titled Invincible.

Bergersen stated that he has been influenced by musicians from many genres, such as Wolfgang Amadeus Mozart and Katy Perry.