Stevie Nicks poses with the BMI Icon Award at the 62nd Annual BMI Pop Awards at the Beverly Wilshire Hotel on Tuesday, May 13, 2014, in Beverly Hills, Calif. (Photo by Chris Pizzello/Invision/AP)
Stevie Nicks poses with the BMI Icon Award at the 62nd Annual BMI Pop Awards at the Beverly Wilshire Hotel on Tuesday, May 13, 2014, in Beverly Hills, Calif. (Photo by Chris Pizzello/Invision/AP)
Stevie Nicks, winner of the BMI Icon Award, arrives at the 62nd Annual BMI Pop Awards at the Beverly Wilshire Hotel on Tuesday, May 13, 2014, in Beverly Hills, Calif. (Photo by Chris Pizzello/Invision/AP)
Bonnie Raitt, Stevie Nicks, Sheryl Crow, and Carrie Underwood perform at the 2014 Rock and Roll Hall of Fame Induction Ceremony on Thursday, April, 10, 2014 in New York. (Photo by Charles Sykes/Invision/AP)
Bonnie Raitt, Stevie Nicks, Sheryl Crow, and Carrie Underwood perform at the 2014 Rock and Roll Hall of Fame Induction Ceremony on Thursday, April, 10, 2014 in New York. (Photo by Charles Sykes/Invision/AP)
Stevie Nicks performs at the 2014 Rock and Roll Hall of Fame Induction Ceremony on Thursday, April, 10, 2014 in New York. (Photo by Charles Sykes/Invision/AP)
From left, Sheryl Crow, Bonnie Raitt, Stevie Nicks, Carrie Underwood, and Emmylou Harris appear in the press room at the 2014 Rock and Roll Hall of Fame Induction Ceremony on Thursday, April, 10, 2014, in New York. (Photo by Andy Kropa/Invision/AP)
Stevie Nicks appears in the press room at the 2014 Rock and Roll Hall of Fame Induction Ceremony on Thursday, April, 10, 2014 in New York. (Photo by Andy Kropa/Invision/AP)
From left, Sheryl Crow, Bonnie Raitt, Stevie Nicks, and Carrie Underwood in the press room at the 2014 Rock and Roll Hall of Fame, on Thursday, April, 10, 2014, in New York. (Photo by Andy Kropa/Invision/AP)
Hillary Scott, of the musical group Lady Antebellum, left, and Stevie Nicks perform on stage at the 49th annual Academy of Country Music Awards at the MGM Grand Garden Arena on Sunday, April 6, 2014, in Las Vegas. (Photo by Chris Pizzello/Invision/AP)