Carrie Underwood and Miranda Lambert

Singer-songwriter Carrie Underwood, left, and musician Miranda Lambert, photographed in April at the Academy of Country Music Awards, will team for a duet on May 18 for the 2014 Billboard Music Awards.

( Jason Merritt / Getty Images )

Singer-songwriter Carrie Underwood, left, and musician Miranda Lambert, photographed in April at the Academy of Country Music Awards, will team for a duet on May 18 for the 2014 Billboard Music Awards.

  • Email E-mail
  • add to Twitter Twitter
  • add to Facebook Facebook