As Jack and his mum have discovered, a lot can change in twelve months.
Jack's journey has been captured in home videos taken by his mother, documenting his incredible rise to fame since his win on Australia's Got Talent just last year.
In six months the shy but incredibly talented schoolboy has become one of Australia's highest paid artists. At fifteen, he's a millionaire in the making, and in demand worldwide.More stories from Today Tonight
According to Jack, “it's great. It's a big change to what it was before."
Gone are his routine school days, replaced instead with correspondence books overseen by his mum Rachel, who now spends her time chaperoning her teenage son to the studio, to meetings with music executives, and of course to his global performances.
He's met and sung for John Travolta and Jerrry Springer, performed on America's Got Talent and sung to a packed house at Caesar’s Palace in Vegas.
There's even been demand from china, and at up to $10,000 a gig, it has all transformed Jack's life in more ways than one.
"We have sort of spent our whole lives travelling around and living in different places, and I think this is like the first time in a long time that we've actually been in the same spot, and been able to afford the same spot, which is really nice,” Jack said,.
Jack is now able to pay for a place for himself and his mum.
Turning his reality TV win into a success story takes hard work and persistence, but Jack says it's paying off. Now the family of two admit they're enjoying the good life, and lots of new clothes - but unlike most normal teenagers with a weekend job, his hours and pay cheques are tightly managed.
And with his first national tour about to start, and a new album, his fame is set to skyrocket even further.
But, says Jack, with fame comes scrutiny. Since his win, his voice has well broken - a normal teenage development - but for Jack it turned into headline news.
"There was this whole thing of ‘Jack's voice breaking’ about three or four months ago, and I think I sort of laughed at the whole thing, cause they sort of made out like I couldn't sing anymore, and my whole life was over, which it wasn't,” Jack said.
“I don't say ‘broken’ I sort of think ‘matured’.”
So how has that affected his singing?
“I can get a whole bunch of low notes. I've got this whistle register which I didn't have before."
Entertainment and music writer for the Sunday Telegraph Jonathon Moran says part of Jack's appeal isn't just schoolboy charm, but his ability to handle the pressure of fame at such a young age.
"I think he's handled it very well. We've thrown a lot at him, we've questioned the fact he's changed his teeth, his hair, he's lost weight. He did that whole sort of makeover, and then he's taken everything he's had thrown at him well, and run with it," Moran said."I think this is his life. I think he was always honest about the fact he was never the cool kid at school, so he's sort of laughing now all the way to the bank, and having fun and doing music, and people want to know him."Tour dates
- Friday 27th April – DOUBLE BAY, Bluebeat www.bluebeat.com.au
- Friday 25th May – KINGSFORD, The Juniors www.thejuniors.com.au
- Friday 1st June – CAMPBELLTOWN, Campbelltown RSL Club www.campbelltownrsl.com.au
- Saturday 2nd June – CASTLE HILL, Castle Hill RSL Club www.castlehillrsl.com.au
- Friday 15th June – PENRITH, The Evan Theatre-Penrith Panthers www.penrith.panthers.com.au
- Saturday 23rd June – HARBORD, Harbord Diggers Club www.harborddiggers.com.au
- Friday 29th June – WODEN ACT, Canberra Southern Cross Club www.cscc.com.au
- Friday 6th July – DAPTO, Dapto Leagues Club www.daptoleagues.com.au
- Saturday 7th July – REVESBY, Revesby Workers Club www.rwc.org.au
- Saturday 14th July – ROOTY HILL, Rooty Hill RSL Club www.rootyhillrsl.com.au
- Jack Vidgen - www.jackvidgen.com
This reporter is on Twitter at @adenecassidy7