However, a representative for Luke said: "These statements and allegations concerning Dr. Luke are completely false."
"It is unfortunate that at a time Kesha is suffering immensely and trying to heal at a treatment center, her mother is taking this approach with the media. I give Kesha my utmost support and well wishes for a quick return to health," the representative added.
Kesha is reportedly at Timberline Knolls rehab centre near Chicago.
