WTH Costuming Department: For a brief period after his move to RAW, Ziggler went from his bleach-blond slicked hair to a well-combed dark brown. Apparently, this was an effort to make him look more serious. It backfired - so horribly, in fact, that Ziggler's hair was back to blond (although they couldn't undo cutting it) within the month.
According to Dolph, it needed to be done because his hair was fried but he HATED it.