While we've never been huge "Grey's Anatomy" fans, we have recently come to appreciate Katherine Heigl's fashion sense. She took a colorful cue from the Duchess of Cambridge with her pink skinnies and she looked rather Marilyn Monroe-ish while out last week.

But the actress' Mother's Day outfit was far from on-trend -- in fact, it was a total '60s throwback. Out in Los Feliz to celebrate Mother's Day with her husband, Josh Kelley, and their daughters, Katherine wore a short white, black and pink shift dress paired with leather over-the-knee boots. The bows on the boots matched the oversized bow on her patent leather Valentino bag.

We don't have an issue with retro '60s style per se... but there's a lot of leather on those boots. And maybe two too many bows.

See Katherine's outfit below. Would you wear over-the-knee boots with a minidress in the spring?

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Katherine's leather boots-and-dress combo:

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