The photo shows Rob at a young age, grinning from ear to ear, while posing next to his equally enthusiastic father. "Happppy Birthday Dad!!" he wrote, along with smiley face emojis and a couple of emojis of angels.
In previous years, all his kids have shared heartfelt tributes for Robert, and last year, Khloe shared a high school photo with the caption, “To the great of the great…miss you everyday!”
And on her show, Revenge Body, she opened up even more about his death, saying,“My dad died in 2003. I was 19. And when it set in, I was like, you spiral. For me, my spiral was food. I gained so much weight because I was so internally just suppressing so many things that it was like, eating me alive, and I was literally eating anything."
Kim has also posted tributes in the past, sharing on Twitter, "I love our family. Thank you for EVERYTHING. I'm so grateful you are my dad! I found a 3 page letter my dad wrote me right after high school about life and it's so special to have. I re-read it last night."
What are your thoughts on his tribute? Let us know in the comments section.