Los Angeles - Hollywood star Jamie Foxx is mourning the loss of his sister DeOndra Dixon. She was only 36-years-old.

"My heart is shattered into a million pieces," Foxx (52) wrote on Instagram on Monday.

He described his sister, DeOndra Dixon, who had Down syndrome, as "bright light." She loved to dance and often stole the show.

"Tho my pain is unbelievable I smile when I think of all of the great memories that she left me... my family... and her friends…," the actor and musician added.

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He posted several pictures of his younger sister, but did not share any details about her death. According to People magazine, DeOndra died on October 19.

As a long time ambassador for the Global Down Syndrome Foundation, DeOndra helped raise awareness of condition.

The organization also paid tribute t0 her, writing: "we have lost our talented, intelligent, feisty, beautiful, kind, loving, caring, pure and giving heart, DeOndra Dixon."

DeOndra Dixon was born in 1984, in Texas. She graduated from high school and later moved to California, where she lived with the Foxx family, according to People. She appeared in the music video for Jamie Foxx's single Blame It and also got to dance on stage at the Grammy's.