Kesha's first album in nearly five years, the triumphant Rainbow rocketed the superstar singer back to the top of the charts, debuting at No. 1 on The Billboard 200. Called "the best music of her career" by Rolling Stone, Rainbow serves as Kesha's second No. 1 album, following her debut, Animal, which entered atop the chart in January 2010. Featuring the potent and provocative singles "Praying," "Woman" and "Learn to Let Go," Rainbow marks a new beginning for Kesha, one based around inner strength and musical exploration as she achieves her vision by enlisting a roster of disparate collaborators including Eagles of Death Metal, Dolly Parton, Ben Folds, Ricky Reed, Wrabel, the Dap-Kings and her mother Pebe Sebert.