The Weeknd has recorded an original end titles song for James Cameron’s Avatar: The Way of Water. The track, entitled Nothing Is Lost (You Give Me Strength), features lyrics & melody by the singer/songwriter himself and is produced by the film’s composer Simon Franglen and Swedish House Mafia. Listen to a first excerpt from the song after the jump. The song is set to be released on December 15 by Hollywood Records and a full soundtrack album featuring Franglen’s score will be coming out on December 16.