Lady Gaga is the latest star to come out in support of Kesha following the "True Colors" singer's recent removal from the Billboard Music Awards line-up.
"Isn't it strange that it's legal to own a woman this way?" Gaga tweeted on Wednesday. "Listen, Ursula, we want her voice back. #freeKesha"
NEWS: Judd Apatow, Rita Wilson Show Support For Kesha After Her Removal From Billboard Music Awards Line-Up
Kesha will be unable to attend her previously scheduled performance at Sunday's BBMAs after she and the awards show say Dr. Luke's record label, Kemosabe Records, rescinded their approval for her to appear. Dr. Luke has not commented on the matter.
After hearing the news, many expressed outrage.
"Dr Luke can prevent Kesha from even performing?!!" Judd Apatow tweeted. "What kind of contract gives him that kind of power? F**ked up."
Rita Wilson also spoke out, writing, "Doesn't this seem wrong on many levels? Kesha has every right to perform. Chris Brown was able to perform after his troubles #KeshaforBBMas."
The controversy arose after Kesha's sexual assault case against Dr. Luke (real name Lukasz Gottwald) was put on hold while the singer resolves her breach of contract lawsuit with the producer in New York. Kesha alleges Dr. Luke drugged and raped her in the suit, and the producer has dismissed those claims as "outright lies."
Gaga's comments seem apropos, as Kesha delivered a poignant performance of the singer’s "Till It Happens to You" at The Humane Society of The United States' Los Angeles benefit and gala fundraiser earlier this month. The Oscar-nominated track was written about sexual assault for the 2015 documentary The Hunting Ground.
WATCH: Kesha Performs Emotional Cover of Lady Gaga's 'Til It Happens to You' at Humane Society Gala
"I want to dedicate this song to every man, woman, child [and] animal that has ever been abused," the teary-eyed pop star said as the night's honoree, Diane Warren, started playing the song on the piano. Warren co-wrote the song with Gaga.
For more on Kesha's BBMA controversy, watch the video below.