Tony Armstrong goes Instagram-official with musician Rona Glynn-McDonald: 'Been a nice time'

TV presenter and former footballer Tony Armstrong has revealed he's in a new relationship with musician Rona Glynn-McDonald.

Armstrong, 34, went Instagram official with Glynn-McDonald, 26, on Wednesday, sharing a series of loved-up snaps that got more than 27,000 likes.

"Been a nice time," Armstrong captioned the joint post, with one fan joking that "hearts [are] breaking around Australia".

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In the images, the pair look smitten, kissing and gazing at one another affectionately.

"This hard launch is doing things to me," Dylan Alcott wrote under the post.

"Oooft," Brittany Hockley wrote.

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"This is hot... my babies,' Chantelle Otten added.

Last year, Armstrong was forced to deny rumours he was secretly married and said he'd be open to getting married to "someone pretty special" in future.

Musician Glynn-McDonald is a Kaytetye woman and a founding CEO of Common Ground.

Common Ground is a not-for-profit organisation "that exists to centre First Nations people," according to its website.

She is also the Director of First Nations Futures which aims to help the First Nations community and break down economic barriers.

Amid her work commitments, she is also an electronic music producer and DJ who goes by the stage name, RONA and has supported Rufus Du Sol on tour.

Armstrong played for the likes of the Sydney Swans and Collingwood during his AFL career.

He went on to become a presenter for the ABC.

Armstrong has won two Logies in recent years, the Bert Newton Award for Most Popular Presenter and the Graham Kennedy Award for Most Popular New Talent.