Kim Kardashian doesn't seem to care what Mad Men star Jon Hamm thinks about her!

The voluptuous reality star stopped by The Hair Shop in Los Angeles as a brunette, but walked out of the store as a platinum blonde. But don't call Kim K a dumb blonde!

After being called an "idiot" by Hamm in a recent article from the U.K.'s Elle magazine, Kim Tweeted:

    "Calling someone who runs their own businesses, is a part of a successful TV show, produces, writes, designs, and creates, 'stupid,' is in my opinion careless."

Kardashian added, "I respect Jon, and I am a firm believer that everyone is entitled to their own opinion and that not everyone takes the same path in life. We're all working hard, and we all have to respect one another."

Way to take the high road, Kim!