Actress Jennifer Aniston, known for her perfectly pin-straight hair, says it's difficult to get the look.

Recently, she sported a sleek bob, debuting a darker shade of brown and she said she has bad hair days too, reports eonline.com.

"The thing that makes me chuckle is when I hear that my hair is so this, or so that. My hair is always at odds with a brush and a hair dryer. To get my hair straight can be a struggle," The Boston Globe newspaper quoted Aniston as saying.

The "Friends" star also recently went back and forth with her hair extensions.