Cheryl Cole's protégé went head-to-head with Olly Murs in last night's final and over 10 million votes were split between the two lads.
It was 18-year-old Joe who came out on top and mentor Cheryl couldn't have been more proud.
'She's just really, really supportive,' says Joe. 'I think where you're from has a lot to do with how you think and the fact that we're from the same area gives us a bond.'
Slim Joe used to be a chubby teenager but decided to get fit because carrying the extra weight made him feel so tired.
'At 15 I decided to start a healthy eating plan,' he explains. 'It was prompted by just feeling I didn't have any energy. 'I was an active child, but when I hit my teens I discovered computers and the weight just piled on.'
Joe took up jogging and eventually shed the extra pounds.
Alexandra Burke, JLS, George Michael, Leona Lewis and Sir Paul McCartney all performed on last night's results show making it a spectacular night in front of the box.
Where to next?
- X factor final gallery
- Are you like Cheryl or Dannii? Take our X factor judges quiz
- X factor style gallery