We're about ready to market 'Team Taylor Swift Needs to Learn to Live Without a Man' shirts as the relationship-doomed star is rumored to already be off the market after her most recent split with Conor Kennedy.

And who's the lucky album subject guy this time? One Direction singer Harry Styles.

Swift has been spotted out and about with her newest conquest, but the boy band's manic fans don't like their relationship one bit and have already made with the death threats.

When news of the rumored couple broke, a rabid group of One Direction devotees -- who've dubbed themselves the Directioners -- targeted Swift and began sending her nasty Twitter messages.

One fan tweeted, “I'll murder Taylor Swift. She will not date my Harry,” while another posted, “If u dating my harry, I kill you.”

Girls, girls. What are they teaching you at school? Even death threats require proper English.

Rumors about the pairing -- which kinda maybe started earlier this year -- heated up when the duo were seen holding hands and flirting at a recent 'X Factor' rehearsal on Nov. 15, details host Mario Lopez was all too happy to spill.

Lopez claims, "During rehearsals, Harry from One Direction came and slapped me on the back, and said, 'Hey, Mario, how ya doing?' And I said, 'What are you doing here?' And he sort of [pointed] toward Taylor ... So Taylor Swift and Harry from One Direction -- you heard it here first. [They're] officially hanging out, I can say that much."

Another source also confirmed the flirting, saying, "After she finished, [Harry] went up to the stage. They were joking and laughing ... He picked her up and threw her over his shoulder and carried her off."

Me, Harry! You, Taylor! Tres romantic.

He then clubbed her over the head and dragged her off by her hair. So by caveman standards, they are most definitely "officially hanging out."

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