Before Kelsea Ballerini's Grand Ole Opry official induction on Tuesday (Apr. 16), she performed backstage with Keith Urban and Carrie Underwood.

The trio covered Trisha Yearwood and Don Henley's "Walkaway Joe" acoustically, in one of the historic Opry dressing rooms.

"That boy's just a walkaway Joe / Born to be a leaver tell you from the word go / Destined to deceive her / He's the wrong kind of paradise / She's gonna know it in a matter of time / That boy's just a walkaway Joe," the trio sings in the chorus.

Ballerini shared the iconic moment on her social media, writing, "Sometimes the most unforgettable moments are the unplanned ones. like this. backstage at the Opry with two of my hero’s singing one of my all time favorite songs. What a life."

Underwood inducted Ballerini into the Grand Ole Opry family later in the evening. "I want to thank them for asking this talented, incredible, smart, sweet, beautiful woman to be a member," Underwood tells Ballerini and the audience. "You have accomplished so much in your career and you will undoubtedly accomplish infinite amounts more in your career and in your life. Awards and number ones and sales and tours and fans, and just all of it."

Ballerini is currently on her Miss Me More headlining tour alongside Brett Young. This marks her first headlining arena tour, and she already sold out the first three dates!

Underwood will embark on her Cry Pretty 360 Tour starting on May 1 in Greensboro, N.C.; she will travel through North America through the end of October. Maddie & Tae and Runaway June will as opening acts for the duration of the U.S. leg.

Urban will be hitting the summer music festival circuit with select dates from May through September.

Kelsea Ballerini and Her Husband Walk the 2018 CMA Awards Red Carpet: