The annual event, which benefits the Sunrise House homeless youth shelter in Tenille's native Grande Prairie, Alberta, has been getting bigger each year, but the singer had to shut down a physical 2020 event due to the coronavirus pandemic.
Instead, the event will stream online four days after Townes releases her new album, "The Lemonade Stand", on 26 June.
She will host and perform her portion of the virtual show at the Ryman Auditorium in Nashville, Tennessee, while guests like Bentley, Metz, Brandi Carlile, Luke Combs, Andy Grammer and Ashley McBryde will offer up at-home sets.
The concert will be streamed from 8 P.M. ET on 30 June via Townes' Facebook (https://www.facebook.com/tenilletownes/) and Instagram (https://www.instagram.com/tenilletownes/?hl=en) pages.
Revealing the poster for the fundraiser on Instagram, she writes, "I really can not get over the names on this poster, and am so honoured to have these heroes and friends be a part of a night of amazing music, all hosted from the mother church, the Ryman Auditorium."
"Big Hearts started 10 years ago in my hometown, when I heard that our youth shelter needed funding to stay open. I have been blown away by the power of music and what happens when a group of people come together. I'm thrilled to bring this event to everybody's living rooms this year, and have the very first Big Hearts For Big Kids: Live From Nashville!!"
"In light of all that's going on in the world right now, wrapping our arms (virtually) around the kids who need us out there, feels more important than ever. I can't wait!!!"
Proceeds from Big Hearts for Big Kids will again benefit Sunrise House, as well as Girl Scouts of Middle Tennessee's Troop 6000, which supports girls without permanent housing. Townes recorded a version of "Somebody's Daughter" with the troop last year (19).