"Through the Fire" is a song by Crush 40, and is played when fighting Sir Gawain, Sir Percival or Sir Lancelot in Sonic and the Black Knight. It is a short song, lasting only a minute, that loops during the battle.
Sonic and his friends receive a mysterious letter from an unknown character, they soon find out that this letter was written by the famous DJ Porter The Lizard, where he invites Sonic and his friends to a dance championship. They all agreed and now they have to show this rhythmic and dancing spirit and win the cup of dance.