Robert Irwin has sent fans into a spin with a new photo posted to Instagram.
The 19-year-old son of late wildlife warrior Steve Irwin has built up quite the fan base in the past year or so.
WATCH THE VIDEO ABOVE: Robert Irwin and girlfriend appear on the red carpet in Sydney.
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And one specific detail in the new snap had many raving, as he debuted a slightly more rugged look.
In the photo, Robert is standing next to sister Bindi’s husband Chandler Powell.
Both are wearing dark blue T-shirts and brown workers’ boots, pointing at each other and grinning for the camera.
Robert captioned the photo “Twinning”, but it seems he wasn’t referring to their similar shirts or shoes.
It was another detail that fans were focusing on – the beginnings of a beard, or, at least, some significant stubble, a new look for the normally clean-shaven Robert.
“IS THAT A BEARD,” one person exclaimed.
“OMG OMG OMG,” wrote another.
“I can’t believe I see facial hair!” added a third.
“FACIAL HAIR! Man’s getting even cuter!” said another.
“Not sure if that’s a shadow or you’re growing a beard but you look GREAT,” said one.
“I feel like Robert looks different in this photo,” another fan wrote, tagging a friend, who wrote back: “Yeah he does, I think it’s the beard, I don’t know though.”
“OH god the beard,” said another, adding heart-eye emojis.
While the facial hair seemed to be a big hit with Robert’s followers, others had more general comments to make.
“Two hunks,” one follower wrote.
“Looking good guys,” agreed another.
“Your muscles are a bit smaller Rob,” one fan teased.
“Who’s got the bigger guns?” added another.
Others were also unused to seeing Robert outside of the Australia Zoo uniform.
“My GOD you’re not wearing khaki!” one follower observed.
Robert recently appeared on the red carpet with girlfriend Rorie Buckley at The Mission Impossible premiere in Sydney.
Robert looked stylish in a black suit while his girlfriend turned heads in a one-sleeve maxi dress.
As photographers snapped away, the teenager wrapped his arm around Rorie and they shared a laugh.
Rorie – who is the daughter of Heath Ledger’s sister Kate – beamed, supporting her boyfriend on the red carpet as he spoke to media and guests on the red carpet.
Fans swiftly took to social media to react to the new photos.
“What a cute couple, he’s very handsome,” one said.
“Omg they’re so cute, living for this,” wrote a second.
“Aww I love them together,” another added.
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