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Bruce Jenner's mum says she's never been prouder of her son.

And addresses those rumours.

The rumours are true – Bruce Jenner’s mother has confirmed that he is transitioning to become a woman.

Many people have been speculating for a while now about the Keeping up with Kardashians star’s more feminine look, and his mother has finally set the record straight.

For months, through the media we’ve been flooded with claims that the 65-year-old ex-Olympian is becoming a woman. Most famous for being the Kardashian’s step-dad, former husband of Kardashian mum, Kris and dad to Kendall and Kylie (plus the rest) – recently he has been in the spotlight for a very different reason.

Bruce with the Kardashian clan.

And now his mother has come out, not only to confirm the claims about her son becoming a woman but also to show her unwavering support.

“I just learned about [his transition],” Esther Jenner told RadarOnline. “Bruce filled me in, and we had a very long, long, long talk about it.”

"I have never been more proud of Bruce for who he is, himself as a father, as an Olympian, a wonderful public speaker. He instills enthusiasm in people. He’s gifted," she told RadarOnline.

Esther said that she is more proud of her son now than she was when the gold medal was put around his neck on the Olympic podium.

“I support him whole-heartedly...I just love him like I always have,” she told the publication.

According to several reports Bruce Jenner will talk about his transition in a TV interview. It is confirmed that he will talk to an American ABC News reporter on air ahead of his reality series that will document Bruce's transitioning journey.

With the clan - from Khloe Kardashian's Instagram.

But why is Bruce (and his mum) talking about it so publicly now? After so many years?

Bruce's mum says it's because he wants to help the millions going through similar transitions and life changes to him.

“If he can help other people with emotional problems,” Esther told RadarOnline, "then it will all be worth it."

Mum of the year? She's definitely a shoe in.

What's the hardest life decision you've ever had to make?

CLICK THROUGH the gallery to see Bruce and the Kardashian clan...

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