I find this so hard to believe! Yet E! News reports that Christina Aguilera got into a tiff with her ‘Burlesque’ co-star Julianne Hough at a pre-Golden Globes party over the weekend. “Christina really got in her face,” an eyewitness told E! News, saying that Aguilera unleashed a verbal barrage at Hough. Onlookers said Aguilera even grabbed Hough, leading the  Dancing With the Stars hoofer to snap, “Don’t touch me!” Before the two separated, Aguilera threatened to torpedo Hough’s burgeoning country singing career. Hough was said to be “visibly upset” by the incident, according to one insider. “The whole thing was troubling. People felt bad for Julianne.” Goodness! Now, it should be noted that Christina’s rep called the story “nonsense.” Julianne’s rep couldn’t be reached for comment. Julianne’s boyfriend , Ryan Seacrest , reportedly wasn’t at the party. poll by twiigs.com Photos by FAME