Charmingly Zach talked up Taylor and called her a "sweet girl" he's met a couple times. Unfortunately, he calls reports that they were in a relationship, "Internet bulls**t." In fact, he said he's tried to avoid high-profile romances since dating singer/actress Mandy Moore.
"When you date another famous person, that's when they really hound you," he said to Howard describing the paparazzi. "They follow you everywhere you go."
Another reason Zach couldn't date Tay? He's pals with her ex Harry. Zach described to Howard what it was like to see the One Direction singer get attacked by photogs at the Sundance Film Festival.
"This kid, he's the sweetest kid, he can't walk two f**king feet, or a crowd forms and paparazzi forms... it's an existence who the hell would want?"
Listen to Zach's interview with Howard below.
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Gallery | Taylor Swift's Famous BFFs