The “Whiskey on You” hitmaker pours truth, pain, and hope into his new set.
They are among the presenters who will help introduce the more than 45 artists heralding Nelson's milestone birthday this weekend.
The show will also be free to stream live globally.
Miranda Lambert, Morgan Wallen & Eric Church will headline the three-day country music festival, kicking off on Friday (April 26).
Voting for the inaugural Country Power Players' Choice Award is now open.
The peer-voted award allows the music industry to participate in Billboard's Country Power Players ranking of the genre’s most influential executives.
April 26 marks 10 years since the Country Music Hall of Fame member's death.
Billboard's Makin' Tracks column looks at Allen's new single, created alongside Jason Evigan, Gian Stone and Castle.
"I have seen what goes on behind the scenes and it's not easy," she explained on Instagram. "Those decisions are never easy."
The multi-talented musician/artist/songwriter, who died April 23, wrote hits for George Strait and Kenny Chesney, among others.
