2015 two CD set. Definitive, career-spanning and comprehensive, The Essential features the biggest hits and best-loved songs from one of country music's greatest singer/songwriters. 45 tracks including 'On The Road Again', 'Always On My Mind', 'Mammas, Don't Let Your Babies Grow Up To Be Cowboys' (with Waylon Jennings), 'Funny How Time Slips Away', 'To All The Girls I've Loved Before' (with Julio Iglesias) and many more.