Lucille Ball and Desi Arnaz's daughter Lucie Arnaz posted a sweet birthday message to her brother, Desi Arnaz Jr.

Hulton Archive/Getty ; Lucie Arnaz Instagram Lucille Ball and Desi Arnaz’s legacy lives on through their children, Lucie Arnaz and Desi Arnaz Jr., and their grandchildren, Julia, Haley ...

Lucille Ball and Desi Arnaz’s daughter celebrated her younger ... by an adorable sepia-toned photo of the siblings as small children in the mid-1950s, seemingly playing dress-up in hats and ...

Lucille Ball and Desi Arnaz; Lucie Arnaz and Desi Arnaz Jr. as children in the 1950s ...

In the pic, Lucie and Desi Jr. are the spitting images of their iconic parents. Related: All About Lucille Ball and Desi Arnaz's Children and Grandchildren “May this year bring you health, happiness ...