To say that Rick Astley is not metal would probably be an understatement. Lets agree for a moment that AC/DC is metal. So if we put a progression of music from metal down to pop on a line, then Rick Astley is at the very end of that line. Rick can be heard in drug stores and in elevators.
For Rick to open his show with "Highway to Hell" is nothing short of Twilight Zone shit. Its beyond bizarre.
The performance is below. Rick gets an A for effort, but the cover is not great, mostly because of Ricks vocals. But hey, I tip my hat to him for trying.