The occasion was the charity's annual "A Stellar Night" gala and the Hilton ladies were presented with the Heart of Gold Award.
The Starlight Foundation works to brighten the lives of kids facing serious illnesses. They provide everything from mobile bedside entertainment units that can be used in hospitals, to cruises and spa days for the families whose lives have been turned upside down by their child's illness.
"We've hosted many events at our home," Kathy Hilton tells Radar Online exclusively.
"We've had Easter egg hunts and play dates for children and their families.
"Paris and Nicky always participate and I tell them, 'Take the high heels off! We're playing duck-duck-goose and Red Rover!' There have been a lot of special times. We really enjoy spending time with the families."
Last year the Hilton ladies also designed t-shirts sold exclusively at Forever 21 with proceeds going to the cause.
Several kids who are benefiting from Starlight Foundation programs attended last night's festivities at the Hyatt Regency Century Plaza hotel.
Kathy wore a pair of gorgeous diamond chandelier earrings once owned by Elizabeth Taylor. Taylor's first husband was Conrad Hilton, grandfather of Kathy's husband Rick.
