A couple friends were pretty surprised when they saw that Willie Nelson had joined artist's like Mark Knopfler, John Mayer and Tom Petty on a new Eric Clapton album 'The Breeze: An Appreciation of JJ Cale'.

Really?

You're surprised that Willie would sing and play with Eric Clapton?  Willie sings and plays with everybody!

On the album, Willie sings 'Songbird', one of 16 cuts on the album.

And it's not as if Willie just met the legendary rock/blues guitarist and singer.

In fact, for a real treat, check out the video below from 2003.  Willie is joined by Clapton for the all-time classic 'Nightlife'.

Pick those guitars and sing, boys!