The reality winner is set to debut his new single on Australia's Got Talent tonight, and he'll unveil his "edgy" new look as well.
In a publicity shot taken on set, the 15-year-old brags that he's now taller than host Grant Denyer. And he's clearly had a pop star makeover, losing the fringe and the daggy bow ties.
Check out this clip of Jack talking about his album back in May. How perfectly styled was his hair?