Megan Fox never felt pretty when she was younger.

The 'Transformers' star - who is the face of Giorgio Armani's beauty, fragrance and skincare campaigns - admits she had an ''abrasive'' personality and didn't rate her looks during her teen years.

She told MIAMI magazine: ''I was never the pretty girl. [As a teenager] I was abrasive and obnoxious and felt like a loner.''

Megan - who is married to 'Beverly Hills, 90210' star Brian Austin Green - also enjoyed unpopular hobbies including archaeology which meant she couldn't integrate with the popular crowd.