I have decided that despite his outward appearance and musak, John Tesh is a rocker at heart. Let me help set the scene for you:

Back before Conan O'Brien was screwed by Jay Leno for The Tonight Show, he had his own show. He used to have a side kick Andy Richter who thought he was better than just Conan's sidekick and left the show to pursue high brow movies and tv shows. But before ALL of that, Conan had the coolest guests.

In one particular episode, Ahmed and Dweezil Zappa (Frank Zappa's sons) performed with John Tesh on Black Sabbath's The Wizard. Excellent choice!