The "Legally Blonde" star Reese Witherspoon has lashed out at pop princess and actress Jessica Simpson accusing her of cashing in on her stupidity.

Witherspoon was apparently disgusted with Simpson's behaviour in her reality show "Newlyweds" saying she should be ashamed and not instead celebrate her ignorance, reports Hollywood.com.

She says, "Creating a cultural icon out of someone who goes, 'I'm stupid, isn't it cute?' makes me want to throw daggers. I want to say to them, 'My grandma did not fight for what she fought for, just so you can start telling women it's fun to be stupid.'"