Willie Nelson has experienced many highs and lows in his career that has spanned more than 50 years. Now, the 80-year-old reveals he will share those stories in a new memoir.

According to his publisher, Little, Brown and Company, the book will be “the unvarnished, complete and tremendous story” of his life, including previously untold accounts about Ray Charles, Waylon Jennings, Johnny Cash and Merle Haggard.

The 'On the Road Again' singer, who has written several other books, previously released the story of his life, 'Willie: An Autobiography' in 1988. Much has happened since then, including multiple arrests for marijuana possession, and his legal trouble with the IRS, which will undoubtedly be included in the pages.

The book, still untitled, is scheduled for a 2015 release. Nelson is spending much of the fall on the road, in support of his latest album, 'To All the Girls...'

See a list of his upcoming shows here.