The couple have been dating since 2009 and are currently on tour as Wynonna and the Big Noise. Cactus is also the drummer for Julianne Hough, in addition to his work with Highway 101.
"I have loved Highway 101 since working with them in the 1980s," Wynonna told Christian Music Daily. "Their music is timeless. I am a fan, and you will be, too!"
The group released their DVD, 'Christmas on Highway 101,' with a special appearance by Wynonna, last November.
This will mark Wy's third marriage. In 2007, she divorced her second husband, D.R. Roach, after four years of marriage. The singer and her first husband Arch Kelly III were married in 1996 and split in 1998. The couple had two children, Elijah, who is now 17, and Grace Pauline, who is 15.