Ariarne Titmus, Olympics: Bec Judd and Pia Whitesell celebrate gold medal

Cheering on Australia’s new golden girl: Rebecca Judd and Pia Whitesell lead stars praising Ariarne Titmus as she wins gold at the Tokyo Olympics

Australian celebrities have praised swimmer Ariarne Titmus after she won gold at the Tokyo Olympics on Monday.

The 20-year-old triumphed in the women’s 400m freestyle, coming from behind to defeat American five-time Olympic champion Katie Ledecky.

Stars including Bec Judd, Pia Whitesell, Bianca Chatfield and Em Rusciano reacted to Titmus’ victory with joy on social media.

Proud: Australian celebrities including Bec Judd (pictured), Pia Whitesell and Em Rusciano have praised swimmer Ariarne Titmus after she won gold at the Tokyo Olympics on Monday

Bec, 38, shared a photo of the swimmer to Instagram and wrote: ‘Amazing. How about that last 100m.’

‘Yassssss!!’ comedian Em, 42, commented.

Former Home and Away star Pia, 37, also shared a picture of the race and added a love-heart emoji.

Celebrating: Bec, 38, shared a photo of the swimmer to Instagram and wrote: 'Amazing. How about that last 100m'

Celebrating: Bec, 38, shared a photo of the swimmer to Instagram and wrote: ‘Amazing. How about that last 100m’

Delighted: 'Yassssss!' comedian Em Rusciano commented

Delighted: ‘Yassssss!’ comedian Em Rusciano commented

Meanwhile, blogger Sophie Cachia wrote, ‘Woooo crying,’ alongside a party emoji.

The Block star Bianca Chatfield also commented: ‘What an incredible swim.’

Titmus won the gold in the women’s 400m freestyle in Tokyo on Monday.

Support: Pia Whitesell, 37, also shared a picture of the race and added a love-heart emoji

Support: Pia Whitesell, 37, also shared a picture of the race and added a love-heart emoji

She's a fan! The Block star Bianca Chatfield commented, 'What an incredible swim'

She’s a fan! The Block star Bianca Chatfield commented, ‘What an incredible swim’

She defeated Katie Ledecky, who is regarded as the greatest female swimmer ever.

Titmus’ achievement is Australia’s second gold medal of the Tokyo Games, following the women’s 4x100m freestyle relay success.

Coach Dean Boxall couldn’t contain his excitement as he erupted into applause, tearing off his face mask and almost throwing it into the stands.

Victory: Ariarne Titmus (pictured) won the gold medal in the women's 400m freestyle in Tokyo on Monday. She defeated Katie Ledecky, who is regarded as the greatest female swimmer ever

Victory: Ariarne Titmus (pictured) won the gold medal in the women’s 400m freestyle in Tokyo on Monday. She defeated Katie Ledecky, who is regarded as the greatest female swimmer ever

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