Rolling Stone - "[T]he best music of her career....In the process, she also finds her own voice: a freshly empowered, fearlessly feminist Top 40 rebel." Spin - "RAINBOW is a document of Kesha coming into her own, blossoming into the artist she's always truly wanted to become....It's a triumph of songwriting as well as will." Entertainment Weekly - "RAINBOW, her rich, masterful third LP, is far more than a kiss-off to old demons -- it's an artistic feat, as Kesha unites stylistic forays with her sharp, weathered lyricism." -- Grade: A- NME (Magazine) - "[B]luegrass and gospel-inspired closer `Spaceship' is perhaps the most powerful track here -- a contemplative trad finger-picker that sees Kesha waiting to be rescued by a bloody great big UFO and taken somewhere far, far away." Paste (magazine) - "[W]here Kesha shines the most is when she goes back to her Nashville roots, finally putting out the country-tinged tracks that she should have been releasing all along....We get the most authentic Kesha album yet, and it's a triumph."