Willie Nelson and his sister Bobbie have announced a joint memoir together, with Bobbie recounting her journey towards playing in Willie's band for 47 years.

Me and Sister Bobbie: True Tales of the Family Band is a collaboration between the Grammy Award-winning country singer and music biographer David Ritz.

The book will tell the story of Willie and his older sister's relationship by switching between their voices in alternating chapters.

The Nelson family memoir comes five years after Ritz and Nelson joined forces to write the Texas singer’s second memoir, It’s a Long Story: My Life.

His debut memoir, Willie: An Autobiography, came out in 1988.

Me and Sister Bobbie: True Tales of the Family Band explores the Nelson family’s troubled childhood, which was plagued by parental abandonment.

“Willie is very much like our mother,” Bobbie told Rolling Stone in 2014.

In the '70s, Bobbie joined Nelson’s 'Family Band' as a keyboardist and backup vocalist, and remains a core aspect of Willie's musical identity.

Her rendition of the instrumental 'Under the Double Eagle' remains a staple of Willie’s concerts.

The memoir will be in stores on September 15th.