Lucille Ball' s daughter wants the world to know that her brother is "alive and well." Lucie Arnaz, the daughter of Ball and Desi Arnaz, on Saturday shared a rare photo with her brother Desi Arnaz Jr.

CBS Photo Archive/Getty; Lucie Arnaz Luckinbill/Instagram Lucille Ball and Desi Arnaz’s daughter celebrated her younger brother’s birthday this week with a heartwarming message on Instagram ...

Lucille Ball and Desi Arnaz’s daughter celebrated her younger brother’s birthday this week with a heartwarming message on Instagram, accompanied by an adorable childhood photo of the famous ...

Lucille Ball and Desi Arnaz’s daughter celebrated her younger brother’s birthday this week with a heartwarming message on Instagram, accompanied by an adorable childhood photo of the famous siblings. ...