Blake Shelton, Miranda Lambert reunite on new single

NASHVILLE, Sept. 22 (UPI) -- Former couple Blake Shelton and Miranda Lambert recently reunited to celebrate country music.

The ex-spouses and 28 other stars collaborated on the song "Forever Country" in honor of the 50th anniversary of the Country Music Association Awards.

Shelton, Lambert and singers such as Carrie Underwood and Tim McGraw, recorded a mashup of John Denver's "Take Me Home, Country Roads," Dolly Parton's "I Will Always Love You" and Willie Nelson's "On the Road Again." The 50th CMA Awards will take place Nov. 2.

"I really didn't even ask what the song was. I just said, 'Sure, I'd love to be a part of whatever you guys are doing,'" Shelton told E! News. "It's one of those things were you're just honored to be in with accompanying artists."

"I think country music has always been described as a family and now having been in it for twelve years, I one hundred percent agree," Lambert said. "It's about the community and friends and relationships you make over the years."

Shelton and Lambert divorced in July 2015 after four years of marriage and a decade together. The former has since started dating singer Gwen Stefani, while Lambert is seeing Anderson East.

"I'm really hoping that I get invited to the wedding," The Voice producer Mark Burnettsaid Sunday of Shelton and Stefani's rumored nuptials.

"I had no idea by coming to work on a fun music show they would find the loves of their life, and the light exploded and they are happier than you can imagine," he added. "We are all thrilled to be their friends and see the happiness."

Shelton last released the album If I'm Honest, which includes the song "Go Ahead and Break My Heart" featuring Stefani. Lambert, meanwhile, will release the recordThe Weight of These Wings on Nov. 18.