The emotional song pays tribute to fallen idols, with nods to Kenny Rogers, Whitney Houston, Tom Petty, and many more.
The new edition marks the first anniversary of the original set, which included the trio's country airplay No.1 'What If I Never Get Over You.'
The special, hosted by Thomas Rhett and Lauren Akins, will air on November 30 on ABC.
The additional performers will join Justin Bieber, Miranda Lambert, Maren Morris, and more for country music's biggest night.
The set now features four newly-added including Christmas staples by Paul McCartney and the Beach Boys.