He's filed a lawsuit against Pebe Sebert for defamation and "tortious interference" with Kesha's contract, according to Rolling Stone. It's nearly identical to the lawsuit he filed against Kesha earlier this month for defamation and breach of contract.

It's a preemptive measure to make sure that, should the original lawsuit that Dr. Luke (real name Lukasz Gottwald) filed in New York fall through - because Sebert doesn't live there - the new one filed in Tennessee, where she does business, will stick.