Lucie Arnaz said her brother "just likes to stay a bit 'undercover'" in an Instagram post on Saturday, Aug. 3. Lucille Ball's son Desi Arnaz Jr. is making a rare appearance on social media.

"He resisted going into any program for a long, long time," Lucille Ball and Desi Arnaz's daughter Lucie Arnaz tells PEOPLE Liz McNeil is an Editor at Large at PEOPLE, where she's worked for over ...

Debra Messing got the ultimate seal of approval when she impersonated Lucille ... Lucie Arnaz — the daughter of Ball and her I Love Lucy co-star/real-life husband Desi Arnaz — was on set ...

Nicole Kidman will play Lucille Ball in the Aaron Sorkin-directed film, while Javier Bardem will play Ball's husband, Desi Arnaz Nicole Kidman and Javier Bardem are going all-in for their latest ...

But Lucy had an important condition. What was that? Lucille Ball said she would do it if she could work with her husband Desi Arnaz. Well, there he was and he was Cuban. And very handsome.

Perhaps the most powerful moment in "Lucy and Desi" — a documentary about Lucille Ball and Desi ... the 46th anniversary of their wedding and days before Arnaz died on December 2 — were ...

The 'I Love Lucy' couple's son and daughter posed together in a rare moment. Lucille Ball and Desi Arnaz's daughter, Lucie Arnaz, shares a rare photo of her brother, Desi Jr., on Instagram.