Keating wrote this song for both of his parents around March 1998, a month after his mother's death from breast cancer. Originally he had no intention to record the song, but after his bandmates' persuasion a recording was made for his first single. Keating talked about the difficulties he faced when writing and recording this song: "I tried to capture the woman that she was in the words to this song but it wasn't easy. She loved her family more than anything in the world and all she wanted was to see them all grow up healthy, strong and happy. I guess as parents it's all we really want."
The video for "This is Your Song" was filmed in Sydney, Australia around April 2009. Keating is seen visiting a house that appears to be his childhood home, and his flashbacks of his childhood with his mother are projected around him.