Time Out says
It's been nearly a decade since "Tik Tok" introduced us to a pop singer who brushed her teeth with a bottle of Jack and partied until the break of dawn. These days, Kesha has dropped the dollar sign from her name and shed her party girl image. Released in the wake of ongoing lawsuits against her former producer Lukasz “Dr. Luke” Gottwald, Kesha's 2017 album Rainbow never addresses the tumultuous controversy head-on, but the subtext is abundantly clear. From a soaring duet with Dolly Parton to a jam with the Dap-Kings, the record is a showcase of Kesha's talents that purposefully (and joyfully) moves beyond her past (though there's no way she'll make her Ravinia debut without throwing in at least one rendition of "Tik Tok").