Due to an exclusive contract with Dr. Luke, Kesha has not been able to record or release music as an artist since 2014, the year she began a lawsuit claiming that Dr. Luke's contract was unlawful and enabled him to control every aspect of her life. Thankfully, in March of 2017, Dr. Luke's position as CEO of his record label expired, and Sony, the company who owns that record label didn't renew his contract and appears to have released Kesha from her contract. So, now she's able to release "Praying" and later in August Rainbow.