The whole world was shocked when David Bowie died. He was one of the greats, so we can only imagine how hard it was for his family.

But, David did something for his son which we think he'll remember forever. 

Duncan has opened up about one of the most special memories with his beloved father.

One month after Bowie’s passing, Duncan announced that he and his wife, Roden Ronquillo, are expecting a baby – and this week, the dad-to-be revealed that it was David who revealed the gender of their baby.

Talking to E! News, Duncan recalled the memory at Christmas: “When we found out what the gender of our baby was going to be, we were able to get the doctor to write it on a card without us seeing it. Then I got to spend Christmas with my dad, and he actually told us what the gender was going to be.”

1 month since dad died today. Made this card for him at Christmas. Due in June. Circle of life. Love you, granddad. pic.twitter.com/sf7SEUtm64

— Duncan Jones (@ManMadeMoon) February 10, 2016

Back in February, when he announced the news to the world, Duncan shared a photo of a card he made to break the good news to his father in the first place.

“One month since dad died today. Made this card for him at Christmas. Due in June. Circle of life. Love you, granddad,” he tweeted.

What an beautiful memory to treasure.