They were among the thousands forced to evacuate as the fire engulfed large patches of Malibu, Calabasas, Paradise and Thousand Oaks, reported variety.com.
All of Malibu, home to numerous celebrities and Hollywood executives, has been ordered to evacuate.
"I am thinking so deeply for everyone who is suffering today from these abominable fires and grieving the loss of their homes or loved ones. I'm sitting here with many of you wondering if my home will burst into flames. All we can do is pray together and for each other. God bless you.
"Thank you to the fire fighters, police, first and emergency responders for doing above and beyond everything you can do to help us. You are true heroes," Gaga tweeted.
"Pray for Calabasas," Kim wrote on an Instagram story. "Just landed back home and had 1 hour to pack up and evacuate our home. I pray everyone is safe."
Cher, who said she had lived in Malibu since 1972, tweeted that the wildfire was coming close to her home, although she said she was not on the property.
"Friends houses have burned. I can't bear the thought of there being no Malibu," the singer posted.
Actor Mark Hamill wrote the flames are dangerously close to his house, but he and his family members were safe and rooting for "fearless firefighters in their battle versus mean Mother Nature", variety.com reported.
Actor Will Smith posted several videos to his Instagram Story about the fire, saying that his family home was about eight miles away. "That is very scary. We are prepared to evacuate as soon as we get the word. If you are in an evacuation zone, go now."
Wilson tweeted that he had been forced to evacuate, and that his pigs and dogs are okay. He also asked for prayers for the victims of the Thousand Oaks shooting, noting that the same area is now being affected by the wildfires.
Filmmaker Guillermo del Toro evacuated from his property, where his large collection of horror memorabilia is stored.
MGM TV chairman Mark Burnett and his wife, producer-actress Roma Downey, were among the Malibu residents who heeded the call for evacuations. Downey posted a photo of billowing smoke shortly after 9 a.m. and said she was leaving her home off the Pacific Coast Highway with her two dogs in tow.
Scott Derrickson, the director of "Doctor Strange", tweeted that his home was destroyed in the fire. He had evacuated and was safe, he added.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)