Taylor Swift's arm candy

'Back in the studio. Uh oh ..., Taylor Swift tweeted Jan. 10. Uh oh is right. The missive probably caused every man the pop star has ever dated, spoken to or even walked by to sell all their possessions and hide in a decommissioned bomb shelter deep within the earth.

The 23-year-old singer, up for three Grammys at tonights ceremony, is known as much for hit records as her ever-growing wreckage heap of famous exes, about whom she then writes scathing revenge songs. Record of the Year nominee We Are Never Ever Getting Back Together is a poppy, 3-minute, 13-second hateboarding that finds Swift callously dismissing a former flame who begs to patch things up.

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Taylor Swift

(Could it be actor Jake Gyllenhaal?)

Another single off the triple-platinum Red album, I Knew You Were Trouble, contains the lyric, Now I heard you moved on from whispers on the street/A new notch in your belt is all Ill ever be.

Dear John from 2010s Speak Now appears aimed at infamous womanizer John Mayer, whom she briefly dated. Dear John, I see it all now, it was wrong, Swift sings. Dont you think 19s too young to be played by your dark, twisted games?

Mayer later told Rolling Stone that he was caught off guard and humiliated by the song. I didnt deserve it, he said. It was a really lousy thing for her to do.

Theres two ways to look at it, says Dr. Dennis Lin, director of the psychosexual medicine program at Beth Israel Medical Center. The less cynical way is that [she] may become infatuated very easily, but doesnt have the tools or maturity to maintain the relationship.

The more cynical point of view, as a sex therapist, is that maybe shes doing this for publicity, says Lin, adding that hes never met or treated Swift. I do believe shes acting in good faith, but if shes doing this for publicity, thats someone with ant! i-social traits, sociopathic traits.

Pop musics most famous black widow comes in a surprising package. Swift is blond and pretty, but more cute than vampy, with bangs, ringlet curls, bright red lipstick and a wardrobe bursting with zippy sundresses and striped tops.

Her image, perhaps a leftover from scoring her first hit record at age 16, is chaste and non-threatening. She sometimes punctuates her lyrics, as well as her speech, with like.

Its only recently that the perception of Swift has morphed from virginal to man-eater. After dating among others Joe Jonas and Taylor Lautner, Swifts recent dalliances with political heir Conor Kennedy and English boy band member Harry Styles seem to have moved her romantic exploits into parody territory.