The Cardigans frontwoman Nina Persson has ruled out a collaboration with legendary rocker Neil Young, fearing she'd lose control of her bowels if she ever met her hero. The Lovefool singer has pledged never to work in the studio with any of her musical idols, because the enormity of such an event would make her "freak out". She says, "I've been spoiled because so many interesting people have asked me to collaborate with them. I don't want to meet my biggest heroes, though. "I don't want to work with Neil Young. If he asked me to collaborate with him, I'd poop my pants and freak out, but I wouldn't do it. I want to keep some things scared."