Source: Bravewords.com

In the videos below, JUDAS PRIEST‘s Rob Halford, ALICE IN CHAINS‘ Jerry Cantrell, CARLOS SANTANA and PEARL JAM‘s Mike McCready send birthday messages to country icon WILLIE NELSON who is celebrating his 80th on April 30:

Since the early ’70s, Willie Nelson has been one of the main figures of outlaw country, a subgenre of country music that developed at the end of the 1960s as a reaction to the conservative restrictions of the Nashville sound.