"Host of Angels" was written by
Taylor Henderson and
Jon Hume, who also produced the track alongside
Louis Schoorl. Henderson initially started writing "Host of Angels" when he was 15 years old. While working on his second studio album
Burnt Letters (2014), Henderson got Hume to help him finish writing the song. Henderson admitted that "Host of Angels" is "one of the most personal songs" on
Burnt Letters and added that "it was probably the most easiest song to write" because of how personal it is to him. "Host of Angels" is a
piano ballad that was written for Henderson's youngest sister to help her cope with their parents' divorce. Henderson found out about their divorce at the age of 13, while his sister was five years old at the time. He said, "My sister is now [at] that age [I found out] and she's dealing with that situation, and working through it from her understanding. I just wanted to hold her hand through this song, to let her know I'll always be there for her, regardless of what happens in her life." In "Host of Angels", Henderson reminds his sister that she will be okay, with lyrics such as "But oh, I know you'll make it through, There's a host of angels watching over, over you." ==Release and reception==