Kesha broke down in tears when she performed Lady Gaga's song about sexual assault, 'Til It Happens To You', on Saturday (07.05.16) night.

Kesha

Kesha

The 'Tik Tok' hitmaker - who, earlier this year, was denied release from her recording contract with Dr. Luke, despite claiming she had been abused by the producer - dedicated her appearance at the Humane Society's Los Angeles Gala to all victims of abuse and couldn't keep her emotions in check throughout her appearance.

Taking to the stage alongside Diane Warren - who co-wrote the song and was being honoured at the event - Kesha told the audience at Hollywood's Paramount Studios: "I want to dedicate this song to every man, woman, child, animal, that has ever been abused..."

After singing the Oscar-nominated song, which featured in 'The Hunting Ground', a documentary about sexual assault, the 29-year-old star could be seen struggling for breath as she wept while hugging Diane.

Last month, the 'Die Young' hitmaker released her first single since she lost her legal battle, with the new version of Zedd's 'True Colors' making her first new music in over three years.

Taking to Twitter, she wrote: "#truecolors spoke to me so deeply I had to spread the beautiful message of personal empowerment ...

"this is more than a song. it's a declaration of my truth #truecolors (sic)"

Zedd also took to Twitter to confirm to Dr. Luke that he had sought permission to record the track with Kesha as the terms of their recording contract means the producer has approval over who the star works with.

He wrote on the social media site: "ZEDD & KESHA - TRUE COLORS. OFFICIALLY OUT: 4/29 Music can be freedom.

"Just to clarify: We didn't use any loopholes. Kemosable / RCA gave us permission to release. (sic)"

Meanwhile, Kesha has been asked to testify under oath about the allegations she has made against the 42-year-old record producer. She was issued a subpoena to be questioned in an on-camera deposition in New York City in June.