We have ribbed certain musicians — Justin Timberlake and Lana Del Rey — for putting Instagram-like filters on their work in the past, but this time we really mean it: Taylor Swift’s “22” was shot, as best we can tell, in “Valencia,” with an extra torn-photo scrap added in so you know it’s arty. What happens inside this filter? Lots of hiiiipsteeer stuff, like: cat ears, and dancing with pom-pons, and chest-bumping on a trampoline, and half-eaten birthday cake, all of which looks fun, if a little contrived. Also, Taylor is wearing a shirt that says “Not a Lot Going on at the Moment.” Do you know where to find this shirt? Please advise.