It’s safe to say at the ARIAs last year, The Veronicas stole the show.

Not only did the Aussie duo host the awards, they also did a performance which sent viewers into a frenzy.

Performing seemingly topless and covered in red body glitter will do that apparently.

No wonder they look so pleased with themselves. (Getty)

But this year, the red carpet was missing two petite musically-talented twins. And thus begins our Very Important and In The Public Interest investigation to answer the big question: Why?

It becomes particularly strange since Ruby Rose, Jessica Origliasso's girlfriend, was also at the event promoting her new film Pitch Perfect 3.

And while the twins weren't actually nominated for any awards this year, there were plenty of attendees who also weren't. As past winners, hosts and regular attendees, there's no reason why an invitation wouldn't have been extended to them.(Post continues after gallery.)

All the looks from the Aria Awards 2017 red carpet.

They released a new single this year, The Only High, that they've been keenly promoting although they announced the release of their fourth studio album meant for this year had been delayed until 2018 for "personal circumstances outside of our control".

An appearance on the red carpet wouldn't have hurt interest in the release, even if it won't come out until next year, and the pair have been doing other performances, including at the Newcastle 500 over the weekend.

To make things even more confusing, the pair were definitely in Sydney on the night of the Arias and even shared pictures getting super glammed up for an event that looked to be sponsored by Swarovski... who were the sponsors of the ARIA red carpet.

A disgruntled series of tweets from Jess last month could be the biggest piece of evidence to explain their absence after the singer's were snubbed for a Best Video Nomination.

"Nothing like having On Your Side pass 20 million views, tackle real issues, LGBT visibility and still not get a best vid nom," she tweeted after nominations came out.

GOOD MORNING EVERYONE EXCEPT THE ARIAS.

— Jessica Veronica (@Jessicaveronica) October 12, 2017

Nothing like having 'On Your Side' pass 20million views, tackle real issues, LGBT visibility &still not get a best vid nom by @ARIA_Official

— Jessica Veronica (@Jessicaveronica) October 12, 2017

Can't wait for the EQUALITY theme they push this year, while snobbing the most watched LGBT video of the year, because egos+politics.

— Jessica Veronica (@Jessicaveronica) October 12, 2017