Dolly Parton & Alvia Alyn Lind Dolly Parton & Alvia Alyn Lind

Country music legend Dolly Parton has had an incredible life. She grew up in poverty and now she has her own theme park. Her new biopic Coat of Many Colors focuses on one sliver of that extraordinary life - the tough but loving childhood in rural Tennessee that inspired the song from which the TV movie takes its name.

People has a sneak peek of the movie, which looks to be in the vein of such tearjerking country music biopics Walk the Line and Coal Miner's Daughter. It tells the story of how the titular coat came to be a symbol of resilience and togetherness for the Parton family during a difficult time.

Coat of Many Colors stars Jennifer Nettles as Avie Lee Parton, Dolly's mother; Ricky Schroder as patriarch Robert Lee Parton, and 8-year-old Alyvia Alyn Lind as Dolly.

Watch Dolly Parton rap - seriously!

Coat of Many Colors premieres Dec. 10 at 9/8c on NBC.