How can I make a single post display different from the other single posts when I add it to a specific category.
example: I have a post that is in 3 categories: music, songs & video clips. I want every time that I add a post in category "songs", it will be displayed differently from all of the other default single posts that don't belong to the category songs. How can I do that? Also, can the same thing happen with tags too? Meaning, when I add to a post some specific tags can it change the template of the post?