Taking to Instagram earlier today, the 'Bang Bang' singer treated fans to a very smiley selfie she took with Delta Goodrem, Ricky Martin and the Madden Brothers (Joel and Benji).
Flanked by Good Charlotte stars Joel and Benji, Jessie can be seen in the centre of her snap flashing her pearly whites.
As well as her pristine teeth, we couldn't help but notice the 26-year-old was also sporting much longer locks too. Fancying a change from her trademark blunt bob, Jessie and her raven-hued bonce was rocking tumbling tresses instead.
Behind the starlet, Neighbours star Delta Goodrem is pictured grinning while 'She Bangs' singer Ricky can be spotted pouting in the bottom corner of the selfie.
Alongside her photo, Jessie wrote: "The squad like."
Earlier this year, Jessie confirmed her place on the latest series of The Voice Australia, telling fans she couldn't wait to get started on the show.
She, of course, has had plenty of practice in her role as coach, as she was one of the originals on the panel for the UK version of the show when it first aired back in 2012.
Jessie joined Sir Tom Jones, will.i.am and The Script star Danny O'Donoghue for the first two seasons, before then quitting to focus on her music.
Now, Jessie is loving every minute of reprising her role in Oz and she seems to be getting on with her new coaching panel like a house on fire.
"[Delta and Ricky] are wicked," she told Australian radio station Kiis FM ahead of her debut. "We all get on really well."
For exclusive competitions and amazing prizes visit Reveal's Facebook page NOW!