You may noticed that the band Chicago is making a bit of a resurgence. They made the Rock and Roll Hall of Fame this year. CNN is doing an hour long special about them. And their reach goes all the way to Ukraine. Check out this incredible cover of "25 or 6 to 4" by a Ukrainian band. It just reminds us how great Chicago was before Terry Kath died. This guitarist seems to be channeling him from beyond the grave.