This March 20, 2008 file photo shows Joni Mitchell, left, and Herbie Hancock perform as part of Nissan Live Sets on Yahoo! Music in Los Angeles. A Los Angeles judge on Monday, May 4, 2015, appointed Mitchell's longtime friend Leslie Morris as the Grammy winner's temporary conservator, giving her emergency powers to make health care and lifestyle decisions. The ruling came after Morris' attorney told a judge that Mitchell may be released from a hospital in the next few days. (AP Photo/Mark Mainz, File)
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