Today is Willie Nelson's 80th birthday. Happy birthday you old fart! 

To ring in his birthday, he made a fake Gandalf audition reel for The Hobbit 2 on Conan

The best part was, Ian McKellen—who actually played Gandalf in The Lord of The Rings—must have seen the clip because he took to his Twitter to respond to Willie. 

Though it must be said, Ian McKellen is actually only 73. Still, this is an awesome video and it's dope McKellen was such a good sport about it.

[via Gawker]