The Foundation, which aims at granting wishes for ill children, saw the 31-year-old spend time with six-year-old Oran to boost his spirits, reported Contactmusic.
"Amazing to spend some time with Oran today, a very special 6 year old boy - love helping starlightmagic! Helping Starlightmagic bring smiles to some very special kids like Oran.
"You can too... Do something great today, help Starlightmagic grant the wishes of brave kids like Oran. All my animals loved Oran today. He is the coolest & smartest 6 year old I've ever met!," Hilton posted on her Twitter page.