There seems to be no discretion between metal and rock. Everything seems to fit in metal that is hard to believe such as Linkin Park, and Three Days Grace. According to wikipedia these bands fall under the genre of nu metal which originated after the death of kurt cobain. These two mainstream among many others are classified as metal so as I asked above what do you think metal is?
Well, since the sun is about 5,000-6,000(K) it could melt metal.
the sun can melt all known metals with no problem at all.
The temperature of the surface of the Sun (the photosphere) is hot enough to not only melt, but vaporize all known metals.
The surface of the sun can go beyond burning metal, it can melt and vaporize all metals with no problem.
look for the solar power plant in spain (maybe near madrid) ... it has a lot of mirrors around the ground with the light focused on a tower in the middle of all the mirrors this tower uses the heat reflected from all the mirrors to heat water to power a steam turbine im sure i heard that the tower had to be constructed taking into account that metal will melt up there also most of the more powerful telescopes (ie the biggest ones that NASA use) if you put some thin metal in the Focal point it will melt ive seen it with my own two eyes enjoy