“If You’re Reading This,” the new song Tim McGraw debuted at May’s Academy of Country Music Awards, has been added to new pressings of the superstar’s current Let It Go CD. The emotional tribute to fallen soldiers and their families, penned by the singer with Brad and Brett Warren, became a Top 25 radio hit after radio DJs began airing a recording of the ACM Awards performance. The song is also available for sale by itself at iTunes.