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This week, Betty White did "Gangnam Style" and a Pakistani man turned selling fish in a London market into a YouTube pop sensation. Plus, check out a spoiler-filled sneak peek at the upcoming season of Portlandia, as well as a montage of the Worst Movies of 2012 reviewing themselves.

Sex and the City Segues: Sex and the City was known for using Carrie's voiceover narration to transition between scenes, and this three-minute supercut basically sums up the entire series using awkward segues.  

"One Pound Fish": Will this be 2013's "Gangnam Style"? Muhammad Shahid Nazir, a Pakistani fishmonger who operates a stand in London's Upton Park, came up with this catchy tune to increase business and has become a bona fide international celebrity because of it. The song recently went to No. 4 on the British pop charts, and Nazir allegedly has a record deal in the works. Come on, ladies! 

The Differences Between Cats and Dogs: The name says it all — with human actors! 

Portlandia Spoils Everything: Massive spoiler alert for this clip. Fred Armisen and Carrie Brownstein play a yuppie couple at a dinner party (go figure!), who manage to casually spoil major plot points for everything from Mad Men to The Wire.

Worst Movies Review Themselves: The scripts of some of the worst movies of 2012 come back to haunt them. This mashup uses actual dialogue snippets as one-line reviews of some of the year's biggest duds. 

Geezer "Gangnam Style": Apparently Psy's 15 minutes of fame have stretched into 2013, as this teaser clip shows. Now even Betty White is jumping on the bandwagon!