March 25, 2010 09:50 PM

Fame; JCalderon/Splash News Online

Who needs to pick just one hair color when you can flip-flop from brunette to blonde and back again all in the course of one day? Not Katherine Heigl! Just weeks after debuting a new brunette hairstyle, the former Grey’s Anatomy star was back on the set of her action-comedy film Killers yesterday in a blonde wig that replicated her previous golden color. But hair today, gone tomorrow! In true Hollywood quick-artist style, Heigl headed to dinner just hours later with her dark brown locks firmly in place in a ponytail. Tell us: Do you wish she’d stick with with brunette or return to blonde?

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