Several country musicians released statements and took to social media to react to Merle Haggard’s death on Wednesday (4/6).

Willie Nelson: “He was my brother, my friend. I will miss him.”

Luke Bryan: “A true hero was lost today. Thank you for your contribution to not only country music but all music. @MERLEHAGGARD”

Carrie Underwood: “Love and prayers for the Haggard family. Merle was a pioneer…A true entertainer… A legend. There will never be another like him.”

Brad Paisley: “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.”

Dolly Parton: “We’ve lost one of the greatest writers and singers of all time. His heart was as tender as his love ballads. I loved him like a brother. Rest easy, Merle.”

Cassadee Pope says there’s a good reason why people love listening to heartbreak songs: it’s relatable.