Leigh impressed with her cover of Patsy Montana's 1935 "I Want To Be a Cowboy's Sweetheart."
The meeting took place backstage at an Ariana Grande concert, Horan revealed.
Mara Justine scores a four-chair turn.
The aspiring country singer makes the gutsy choice to cover the signature song of the brand-new season 24 coach to make her first impression.
The superstar country duo will serve as the show's first coaching duo on season 25.
"I'm going to miss him," Horan said of the country crooner, who recently retired from the singing competition show.
"I just want to say congratulations on the successful run you had on The Voice," Strait said.
Usher called him an amazing coach on Tuesday night's season finale, but one who somehow has three left feet.
"When we signed up for season 1, I don't think any of us knew what this was going to be," the country star recalled.
Under the bright lights, nerves tingling, Miles came up big.
