8,694.

Over the past nine seasons of How I Met Your Mother, our five beloved characters have been through an astounding total of 8,694 wardrobe changes. From ducky ties to wedding gowns, scuba suits and red cowboy boots—one woman has helped to create all of the legendary HIMYM looks from the beginning to the end.

Reiko Kurumada, who has been a part of the wardrobe team since the series' pilot, formally stepped in as the hit CBS comedy's head costume designer at the end of season six. "To have the freedom to put together amazing outfits each week with almost nine thousand outfits over the past nine years, it has just the best experience," Kurumada exclusively shared with E! Online. "I couldn't possibly narrow it down to just one favorite."

So we picked our favorites for her! With the series finale just around the corner on March 31, we chatted with HIMYM's critically acclaimed stylist to get the behind-the-scenes scoop on some of the sitcom's most iconic outfits and brotastic looks. Plus, we grilled Kurumada to spill secrets on one of the most popular conspiracy theories out there—and you won't believe what she revealed...