Theo & Brenna MacMillan - The Bluegrass Hideaway @the615hideaway

Theo & Brenna Band is a Nashville-based bluegrass sibling duo—Theo MacMillan (guitar/vocals) and Brenna MacMillan (banjo/vocals)—originally from Winchester, Kentucky. Known for original songwriting and lush harmonies, the pair formed their band in 2018 and have received recognition, including a 2021 IBMA Momentum Award nomination. Background: Growing up among 12 siblings, the duo developed a passion for bluegrass and moved to Nashville to pursue music. Style: Their music is described as contemporary bluegrass, blending traditional sounds with original material, and they are known for their high-energy live shows. Career Highlights: They signed with Mountain Fever Records in 2021 and have released music including "When You Go" and a version of "Be My Baby," as mentioned on Americana UK. Members & Collaborations: Along with the sibling duo, the band has featured artists like Maddie Denton (fiddle) and Mary Pafford (mandolin). Solo Work: Brenna, who is also a chemist (Berea College), released her debut solo album in 2024 and frequently collaborates with other Nashville musicians, as highlighted on First Avenue.