Bindi Irwin has debuted a glamorous new hairstyle and look.

The Wildlife Warrior was unrecognisable on Tuesday as she dressed to the nines to cheer on her brother Robert Irwin at the Dancing With The Stars US live show.

In a post shared to Instagram, the 27-year-old dazzled in a navy blue frock with a diamante-emblazoned collar.

She was sweetly matched by her four-year-old daughter Grace, who wore a floor-length and tulle dress covered in silver stars.

Bindi’s hair was coiffed in an elegant blow wave and she sported a glowy makeup palette.

The Australian sweetheart could be seen with a giant smile on her face as she posed alongside her husband Chandler Powell, while her lookalike daughter twirled in front of them.

Bindi Irwin has debuted a glamorous new hairstyle and look

Another photo showed Bindi alongside her mum, Terri Irwin, who looked every inch the conservationist in a flamingo print dress.

‘Feeling sparkly and ready for @dancingwiththestars,’ she captioned the post.

‘Cheering for #TeamIrWINit tonight! Robert and Witney are smashing it,’ she added, before urging fans to vote for the dancing duo.

Robert has been making headlines since his debut on the reality show, raising temperatures with his sexy dance moves and ripped physique.

He addressed his sizzling display on last week’s episode, which saw the 21-year-old tear off his shirt during his performance.

Robert opened up about his decision to flash his six-pack abs in a post-show chat alongside his 31-year-old dance partner Witney Carson.

‘We thought we’d take it easy on the costume department tonight,’ he joked with a reporter from US network ABC, before offering a tongue-in-cheek ‘apology’ to his family for his racy display.

‘I said to Witney, “I want to bring out cool Robert.” I was like “He’s in there somewhere.” I want to bring him out.’

The Wildlife Warrior was unrecognisable on Tuesday as she dressed to the nines to cheer on her brother Robert Irwin at the Dancing With The Stars US live show. (Pictured: Bindi Irwin, Chandler Powell and their daughter Grace)

In a post shared to Instagram, the 27-year-old dazzled in a navy blue frock with a diamante-emblazoned collar. (Pictured: Bindi Irwin and Terri Irwin)

He then revealed that his entire family, including his mother, Terri, 61, and sister, Bindi watched the sizzling routine live in the studio.

‘Sorry, guys, sorry about that,’ he joked.

Fans weighed in on Robert’s performance after the interview clip was later shared on the network’s social media.

‘What is he sorry for again??’ joked one fan, while another impressed female supporter gushed, ‘Robert don’t apologise.’

Another fan joked, ‘No, Robert, I’m sorry. Thank you.’

‘You were dancing, performing, I’m sure they approve!’ a fourth viewer said in reference to the Irwin clan.

The fan added: ‘What can’t ya do. Laugh like crazy when ya host I’m A Celebrity! GREAT, GREAT DANCING.’