The Korean rapper's wacky music video was the latest clip to go viral. The twist? "Gangnam Style" skyrocketed to No. 1 on radio stations, was performed at the AMAs and surpassed Justin Bieber in YouTube plays to become the most played video...ever!
We brought you the year's biggest stories, now keep clicking to see the biggest susprises.
The veteran journalist and newswoman was a Today show staple for 15 years. The twist? She was unexpectedly removed from her cohost duties and replaced by Savannah Guthrie. Curry tearfully said goodbye: "This is not as I expected, to ever leave this couch after 15 years."
2008 was the year of Phelps and many thought he'd be the biggest star in London as well. The twist? While Phelps shined (he won a record 19th medal), Lochte—the sexy gold medal winning party boy—became the talk of the town. Everyone together now: Jeah!
The Project Runway hostess and husband were everyone's favorite Halloween-loving couple. The twist? First, they filed for divorce. It happens...but at least they remained amicable. Until Seal said Heidi chose to "fornicate with the help" (she's dating her bodyguard). Yikes!
The farting, go go juicing-Toddlers & Tiaras standout became the star of her own series. The twist? Despite legions of haters, Here Comes Honey Boo Boo's rating shot through the roof, even besting coverage of the RNC. Sorry 'bout it, Romney!
The Jersey Shore diva popped bottles. She hot tubbed. She did cartwheels at the club with no panties on. The twist? 2012 was the year the party ended for America's favorite guidette, when she ditched fist pumping for breast pumps and welcomed a son, Lorenzo.
The Green Lantern costars-turned-real life lovers had cozied up on the East Coast and were fighting off rumors of a split. The twist? Not only were they not breaking up, but the Gossip Girl actually wed her man in a top secret wedding after about a year of dating.
Everyone's favorite cyclist won seven Tour titles without any doping rumors ever being substantiated. The twist? He stopped fighting the charges levied against him, was stripped of his titles, banned from cycling for life and stepped down at Livestrong.
Photos surfaced of K.Stew cheating on her Twilight boyfriend with Snow White director Rupert Sanders. The twist? Though by all appearances the couple called it quits, Robsten was reunited once again in time for Breaking Dawn Part 2.
Brown assaulted Rihanna in 2009, ending their relationship. The twist: Rihanna not only forgave him, but, on Oprah's Next Chapter, admitted, "We love each other and we probably always will, and that's not anything that we're going to try to change."
NEXT GALLERY: Top 10 Pop Songs of 2012