80 per cent of Australia's adult population aged over 16 will be fully vaccinated by the weekend.

Western Australia won't be reopening its border to Australia - or the rest of the world - until 90 per cent of its residents are fully vaccinated.

*The man accused of kidnapping Cleo Smith has arrived in Perth, under heavy guard, where he will await his next court appearance.

In sport, Australia is in the box seat for a semi-final place at the T-20 world cup, following an eight wicket win over Bangladesh.

And in entertainment, Ariana Grande's musical theatre dreams have come true - she'll team up with Cynthia Erivo for the movie adaptation of Broadway hit Wicked.