The King's Song

"The King's Song" was a song that Kamelion-as-King John sung in the presence of the Fifth Doctor and Tegan Jovanka. It was an ode to virtues of the Crusades.

Lyrics
We sing in praise of total war Against the Saracen we abhor To free the tomb of Christ our Lord, We'll put the known world to the sword, There is no glory greater than, To serve with gold the son of man, No riches here on Earth shall see, No scutage in eternity.

Behind the scenes
The melody of this song is incorporated into the broader score as a leitmotif. Though this is common enough in the Murray Gold era, it was almost unique in the "classic" era.