When Billy Joel was honored with the Library of Congress Gershwin Prize for popular song, a group of awesome musicians joined in on Joel's iconic 'Piano Man', and Kevin Spacey on harmonica was totally awesome!

The musical guest included Josh Groban, Gavin DeGraw, Natalie Maines, Boyz II Men, Tony Bennett, LeAnn Rimes, and Michael Feinstein.

I have to confess, I never thought I would hear Josh Groban singing 'Piano Man.' While this collaboration may not be the greatest musical work in the world, it is lots of fun --and very cool!

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