linguistic:paraphrasing
2006–2010: Shine and other late recordings

In an interview with the Ottawa Citizen in October 2006, Mitchell "revealed that she was recording her first collection of new songs in nearly a decade", but gave few other details. Four months later, in an interview with The New York Times, Mitchell said that the forthcoming album, titled Shine, was inspired by the war in Iraq and "something her grandson had said while listening to family fighting: 'Bad dreams are good—in the great plan.'" Early media reports characterized the album as having "a minimal feel... that harks back to early work" and a focus on political and environmental issues.

In February 2007, Mitchell returned to Calgary and served as an advisor for the Alberta Ballet Company premiere of "The Fiddle and the Drum", a dance choreographed by Jean Grand-Maître to both new and old songs. She worked with the French-Canadian TV director Mario Rouleau, well known for work in art and dance for television, such as Cirque du Soleil. She also filmed portions of the rehearsals for a documentary that she was working on. Of the flurry of recent activity she quipped, "I've never worked so hard in my life."

In mid-2007, Mitchell's official fan-run site confirmed speculation that she had signed a two-record deal with Starbucks ' Hear Music label. Shine was released by the label on September 25, 2007, debuting at number 14 on the Billboard 200 album chart, her highest chart position in the United States since the release of Hejira in 1976, over thirty years previously, and at number 36 on the United Kingdom albums chart. On the same day, Herbie Hancock, a longtime associate and friend of Mitchell, released River: The Joni Letters, an album paying tribute to Mitchell's work. Among the album's contributors were Norah Jones, Tina Turner, Leonard Cohen, and Mitchell herself, who contributed a vocal to the re-recording of "The Tea Leaf Prophecy (Lay Down Your Arms)" (originally on her album Chalk Mark in a Rain Storm). On February 10, 2008, Hancock's recording won Album of the Year at the Grammy Awards. It was the first time in 43 years that a jazz artist had taken the top prize at the annual award ceremony. In accepting the award, Hancock paid tribute to Mitchell as well as to Miles Davis and John Coltrane. At the same ceremony Mitchell won a Grammy for Best Instrumental Pop Performance for the opening track, "One Week Last Summer", from her album Shine.

In 2009, Mitchell stated she had the skin condition Morgellons and that she would leave the music industry to work toward giving more credibility to people who suffer from Morgellons.

In a 2010 interview with the Los Angeles Times, Mitchell was quoted as saying that singer-songwriter Bob Dylan, with whom she had worked closely in the past, was a fake and a plagiarist. The controversial remark was widely reported by other media. Mitchell did not explain the contention further, but several media outlets speculated that it may have related to the allegations of plagiarism surrounding some lyrics on Dylan's 2006 album Modern Times. In a 2013 interview with Jian Ghomeshi, she was asked about the comments and responded by denying that she had made the statement while mentioning the allegations of plagiarism that arose over the lyrics to Dylan's 2001 album Love and Theft in the general context of the flow and ebb of the creative process of artists.