Kesha's mother, Rosemary Patricia "Pebe" Sebert, spoke exclusively to Billboard about the lawsuit surrounding Kesha's 10-plus-year business relationship with her producer Dr. Luke. Her lawsuit alleged that the producer abused her, and it requested that she be released from her contract with Sony.

She lost the case, and since then several female celebrities have come out in support of Kesha. Taylor Swift personally donated $250,000 to Kesha to help cover her legal expenses.

Sony claims Kesha can work with another producer at the company, but Sebert told Billboard that stipulation is still not enough:

Sources: Billboard