Kesha appears to have reacted to the news that Katy Perry is collaborating with Dr Luke
Kesha has revealed her 'P Diddy' lyric change she performed for the first time at Coachella is permanent
The singer was a surprise guest during Reneé Rapp's Coachella set
The singer revealed this week that her vibrator had been mangled by a dog
Kesha and Dr. Luke have been part of a long-running legal battle