Lukasz Gottwald AKA Dr. Luke is winning legal battle with the famous singer and songwriter Kesha.
New York appeals court ruled to uphold a decision made by a judge last year, that denied Kesha's attempts to get out of her contract with Dr. Luke.
Dr. Luke has been suing Kesha for defamation since 2014, because Kesha said he was sexually abusing her.
Now, he wants to sue Kesha for $50 million. Why so much money? Because Dr. Luke was a producer on Katy Perry's 4th album Prism (2013), and he claims that this whole lawsuit cost him a chance to work on other Perry's album, Witness (2017).