'Always have hope in your heart. I do!' the singer told a crowd.
The Warrior singer is currently in the studio collaborating on a new song with an unnamed Grammy winner, who some fans believe is Taylor Swift.
Dr. Luke has reportedly filed a second defamation lawsuit against Kesha's mother, Pebe Sebert.
Reports say the singer wants to, instead, focus on a New York case.
"We can't control who feels pain, and we can't control what you do with the hurt and the pain and the anger... what we can control is who we give the...weapons to," Kesha said.
The pop star has signed on the play three nights at Intrigue Nightclub.
Kesha helped one lucky fan propose to his boyfriend onstage at her One Magical Weekend performance at Walt Disney World.
"My body is not your business," the pop star told one particularly cruel social media user.
Kesha blew the BBMAs audience away with an emotional cover of Bob Dylan's "It Ain't Me Babe."
"The approval has been restored," the label, Kemosabe Records, said in a statement.