The entertainer took to Twitter on Saturday to announce that her mother had passed away.
I Love Lucy
Being the Ricardos, also starring Nicole Kidman as Lucille Ball, delves into the relationship between the I Love Lucy stars.
The 54-year-old actress, who plays Lucille Ball in the biopic, revealed she second guessed her ability to portray the late comedian in a recent interview on Live with Kelly and Ryan.
The actress discussed playing the much-loved American TV icon.