News forKeeping Up with the Kardashiansfans who are still wondering why the sisters sound so different now compared to when their show premiered:Kim Kardashianis just as perplexed.

During a wide-ranging interview withVoguetitled"End of an Era: At Home with Kim Kardashian,“published Monday, the reality star opened up about the unexpected way and she and her siblings have changed throughout the 20 seasons of their show.

“That’s the biggest mystery to me and my sisters,” said Kardashian, 40, of their voices changing. “We are blown away — it’s the thing that has us absolutely blown away. We have no idea what happened to our voices; wehave completely different voices.”

“But then,” said Kardashian, “you have to kind of just understand that I’m so grateful for, also, the evolution, ‘cause I’ve learned so much. So I’m happy thatwe were able to be on for so longfor people to see that.”

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Kim Kardashian

After what will be 14 years, 20 seasons and hundreds of episodes since their beloved E! reality series premiered in 2007, Kardashian and her family announced on social media in early SeptemberthatKUWTKwill end in 2021.

In her recent conversation withVogue, Kardashian said that while she and her family members were “unanimous” in their decision to end the show, “it was an emotional” one.

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Kim Kadrashian, Kourtney Kadrashian, Khloe Kadrashian

“I think my most emotional time was when we told our crew thatwe weren’t going to go forward after season 20,” she added.

RELATED VIDEO:Keeping Up with the Kardashiansto Premiere Final Season in March — Watch the Emotional First Promo

One specific instance that stirred up nostalgic feelings for Kardashian and the rest of her family members was when her “audio girl gave [her her] mic.”

“She gave me my original mic that I started with and gave every family member [theirs],“the SKIMS mogulrecalled. “And exactly how it was labeled — they’re all labeled with a regular labeler — and it’s just really special.”

“Even sitting in the chair for the last time, it was emotional,” she added.

The 20th and final season ofKeeping Up with the Kardashianspremieres on E! Thursday.

source: people.com