The Red Riding Hood actress said that she didn't think that she looked like a 'normal girl', and that it took her several years to accept her appearance.
She told Contact Music: 'I was an insecure young girl and I didn't think I was pretty. I didn't like my body. I really looked in the mirror and thought I was ugly because I didn't look like a normal girl.
'I wanted braces, stick-straight hair and a tan. But I wouldn't go to the tanning booth and I had trouble getting up early enough to be able to straighten my hair. It would take forever so my arms would hurt.'
Talking about her recent appointment as the new face of Japanese beauty line Cle de Peau Beaute, she added: 'I appreciate Cle de Peau Beaute's philosophy of empowering each woman to define her own unique sense of style. It's a very sophisticated approach to beauty that I appreciate and feel closely reflects my own beauty ideals.'