Digital Spy caught up with the stunned and delighted Sunderland singer to find out whether his victory has started to sink in yet.
Did you manage to get any sleep last night?
"Oh my god, I slept for like half an hour!"
What did you do when the show finished?
"I had interviews and pictures and stuff straight away after. And then I went to the after party which was really good. I had one or two drinks and then caught up with the boys and all the production staff, had my goodbyes. Needed to say goodbye to everyone I'd spent like four months with. It was really nice. I didn't get to go back to my hotel until 3.30, and then I just lay awake for hours literally looking at the ceiling like, 'Oh my god, did that night just happen for real?' It was amazing.
Were you expecting to hear your name called out as the winner?
"No, I had a bit of a mishap in my first song and I thought I'd blown it actually. I really thought Rory did such a good performance and he's been so strong throughout I was just expecting to hear his name really."
What happened in that first performance?
"The thing is I'd learned that song at like 11.30 the night before. I'd only had like three rehearsals with it. One of those was a camera rehearsal and one of them was a choreographic one with the choir and stuff. I haven't actually watched it back.
"I don't know if it was a timing issue or what I could hear or if I missed the visual cue. I'm not actually sure exactly what happened. After missing the first line I kind of realised, 'Oh my god, I haven't sung the first line'. I just tried to pick it up as best as I could."
Was there a point where you started to think you could win it?
"The schedule was so full on, this show was literally the most intense thing I've ever done in my life, so I didn't really know what the outside impression was. I didn't check the newspapers or the odds or anything like that.
"Within the studio, no-one was coming up to me and saying, 'Oh you're the favourite, you're going to win'. A few people have said it to me since last night, like they knew I was going to win, but I wasn't aware of that really."
Is it straight into rehearsals now?
"I've got about a week off I think. We start rehearsals on the eighth or ninth of August. I've got a bit of time, I feel exhausted. I'm knackered."
What are you going to do with your week off? Are you just going to sit and sleep?
"Yeah, definitely for a few days. I think I'm just gonna go home and see the rest of my family who couldn't get in, catch up. Just try and relax, kind of do some preparation for my rehearsals. I need to get into the head of my character and the piece. Work out what kind of a Jesus I want to play for this version of the show. I've got some groundwork to do before rehearsals start."
You're going to be working with some quite well known people such as Chris Moyles, Mel C, Tim Minchin. How are you going to approach working with celebrities? Will you be starstruck?
"I think when I initially walk in I'm going to be like, 'Wow this is surreal, I'm playing the leading part and title role of this production and it's got these people in'. It's going to be a bit strange.
"I just think of them as people. I'm sure Chris Moyles and I are going to get on. He's a funny guy, I think it's going to be hilarious. He's got great banter. Tim Minchin is like a genius, I can't wait to get to know him. Mel, I already know in some form and we had a lovely, lovely conversation last night at the wrap party, and I think we're going to be really good friends.
"We're going to be sat in a tour bus around the country, we're going to be living together, working together, it's going to be fun."
You went on The X Factor and got to Boot Camp a couple of years ago. Did going on that show not put you off TV talent shows? And what made you want to come back and try again on this show?
"It's a good question actually. You've put it right in a way. I think I was a little put off to be honest, and I've not said that to anyone else. With this I knew it was going to be a serious talent search for a serious talent to play that role, and the only reason is to win the role and get to do the part. To be recognised as someone that could do it and to just reach the finals is incredible. I just thank God it's all worked out and maybe it was all fate in the end."
You've done lots of jobs in the past. What's the worst that you've done?
"When I very first left school and I was 16, I got a job as a graphic designer. I was a graphic designer for about six months and then I realised that I didn't want to spend my life in an office in front of a computer and that was the thing that propelled me to kind of look and fight for stage-school and fight for a scholarship. I re-mortgaged my house and sold the car to cover my living expenses in London. That was probably the thing that made me realise I wanted to do something so much more creative."
Tickets for the Jesus Christ Superstar tour are available now from www.jesuschristsuperstar.com.