When Drew Barrymore stepped out to the London premiere of "Going the Distance" on Thursday, we couldn't get past her hair! Brown until her ears, blonde thereafter, with braids and waves...it was certainly a different look for the actress. But no surprise here, really, since Drew is always changing up her hair for premieres. We've assembled an album of Drew and her recent red carpet hairstyles. Take a look and tell us which are hair DOs and which are most certainly hair DON'Ts.