BLUE EYES CRYING WITH THE PAIN!

Willie Nelson, 90, endures agony to keep on playing

- 

COURAGEOUS country legend Willie Nelson is still determined to keep on performing at the great-grandpa age of 90 even though he’s so crippled by agonizing pain, he can barely walk or stand!

Although people around the Blue Eyes Crying in the Rain sensation fear a terrible crisis is about to hit, insiders say the leather-faced cowboy vows to die with his boots on — while on the road!

“His body aches and gives him pain but he’s determined to brave through it and keep on performing even if it kills him, which it just might do,” confides a concerned pal.