The Country Music Hall of Famer had hits such as "Okie From Muskogee" and "Sing Me Back Home." His passing prompted tributes from those in the country music community and beyond.
Love and prayers for the Haggard family. Merle was a pioneer...a true entertainer...a legend. There will never be another like him.— Carrie Underwood (@carrieunderwood) April 6, 2016
There are no words to describe the loss & sorrow felt within all of music with the passing of Merle Haggard. Thank God for his life & songs.— Brad Paisley (@BradPaisley) April 6, 2016
Hard to believe the news about Merle Haggard. Working with him is something I'll never forget & will cherish forever pic.twitter.com/XsgqYvbtD5— Dustin Lynch (@dustinlynch) April 6, 2016
Rest in peace, Hag. One of a kind, and the definition of legend. pic.twitter.com/aUGX22Avna— Trisha Yearwood (@trishayearwood) April 6, 2016
I'll never forget the times hanging on Merle's bus telling jokes and hed give me a wink when he'd get to the punch line just like my grandpa— Larry The Cable Guy (@GitRDoneLarry) April 6, 2016
literally just fell to the floor. can't believe we lost the hag. rip merle haggard— Dierks Bentley (@DierksBentley) April 6, 2016
Country music has suffered one of the greatest losses it will ever experience Rest in peace Merle Haggard— Charlie Daniels (@CharlieDaniels) April 6, 2016
Saddened by the loss of Merle. We lost a bad ass man, a great poet! I love you Merle. Prayers for his family. R.I.P. #MerleHaggard— LeAnn Rimes Cibrian (@leannrimes) April 6, 2016
RIP to California's cowboy & country music legend Merle Haggard pic.twitter.com/6AxY7cC8J3— Matt (@MattOverton_LS) April 6, 2016
Just heard the news. I'm so so sad. I don't even know what else to say....— Martina McBride (@martinamcbride) April 6, 2016
The Associated Press contributed to this report.