Rhett, Wallen team up for "Mamaw's House"

The song was also released on Rhett's "20 Number Ones (Bonus Version)" collection., which came out today.

The mid-tempo track written by Rhett and Wallen with Matt Dragstrem and Chase McGill features harmonies between Rhett and Wallen.

"To say I feel blessed is an understatement," said Rhett. "It's been a trip down memory lane looking back on all the life and music I've had the chance to share with the fans over the last 10 years. It blows my mind reflecting on all the joy we've shared together and the support I've had from radio, partners and my team to help get my music out there. I'm so grateful for this journey and can't wait for the next 10."

"Morgan and I were writing one day, and he got a call from his Mamaw. We got to talking and realized we both had a 'Mamaw' growing up and so we decided to write a song about that," Rhett said. "The song describes my grandmothers and Morgan's as well. We wanted to describe a small town piece of paradise. Growing up, I can remember going to both of my grandmothers' houses in South Georgia. I learned so many life lessons there about hard work, manners and respect. This song really hits home for me and I hope everyone feels the same."

Wallen said, "Many times in the past I've been open and honest about the love I have for my Mamaw Boots. It was only a matter of time before a song was inspired by her. I dedicate this one to not only, her but to my living grandmothers as well. I hope they know what a big part they've all played in shaping my life. TR had a similar experience growing up. So, I'm really glad we got to write and record this song together. Hope y'all enjoy it."

Rhett is set to close out his tour with a sold out crowd for the first of his two Home Team Tour 23 shows at Nashville's Bridgestone Arena Arena.