As popular as the fez from The Big Bang is (I have my own, although it predates the Doctor’s by a good 10 years) the stetson has been seen already this time around (and who knows, we might see it again…) and of course the Doctor already has a long history of headwear fetish, from the First Doctor’s cold weather headgear to the Eighth Doctor’s wig.
‘I’ve been thinking of hats for next year. I think the pork pie’s quite fun or the Doctor in a fun trilby.’
‘But I think Steven’s going to go for a really ridiculous one. I really like the stetson.’
Ultimately, of course, the days when young white chaps didn’t wear hats (i.e. the 1980s) are long since gone, so why shouldn’t the Doctor once again try and fit in only to betray his alienness by wearing a hat more commonly associated with ska, jazz and blues musicians?