Reveal caught up with some of the hopefuls backstage at the London auditions in February, where they had to perform in front of judges Simon Cowell, Alesha Dixon, David Walliams and Amanda Holden.
We'll get to see them in action soon, but in the meantime, meet London-based singer and part-time model George...
Tell us a bit about yourself?
I've been singing since I was eight years old and I sing in Spanish and Italian as well. I was a butler for a while but I've gone back to doing a bit of modelling now, so I guess you can call me a part-time model. I'm just scraping by at the moment; it's very hands to mouth.
Have you modelled with anyone famous?
I've had a few highs in the modelling industry. I've worked with Kate Moss for a magazine in Milan. I've also stood in for George Clooney a couple of times. The last time was for Vanity Fair magazine.
So how are you feeling ahead of your audition?
I'm quite calm at the moment but I know that it's not going to last for too long. As it gets closer, it's going to get more nerve racking.
What song will you be singing?
I'm singing Stevie Wonder's 'I Believe'. We were asked to submit five songs and that's one of the ones I really love. Josh Groban did a really amazing version of it and if I can sing it at anywhere near as good as he did it, then that would be great.
Have you auditioned for reality shows before?
Yes, I appeared on a talent show called Get Your Act Together, which was presented by Ronan Keating, in the late 90s. Then in 2008 I auditioned for The X Factor and got through right to the end of bootcamp. I was out just before the Judges' Houses stage. I was gutted about it.
How did you deal with the rejection at the time?
I had a lasting memory of that day of going out and seeing Simon, Louis Walsh, Dannii Minogue and Cheryl Cole, and singing my last song to them, which was going to determine if I stayed in or not. My confidence completely went down after that. It's like someone opened up a trapped door and just went straight through it. I just lost my confidence completely and it's taken me this long to get my confidence back. This has been my first audition since then.
So how did you get your confidence back?
I started to do charity events and began singing in church for relatives' weddings. What I've come to understand now that I didn't know then, is that when I sing now it's because I really love to sing. I didn't really have a grasp of it then. I am a singer, whether that's on a show or singing in church. I'm a singer through and through.
Are you hoping to win BGT?
It's an amazing platform for me. I'm 46 and I'm not a spring chicken anymore but I know that I'm probably a better singer now than I ever have been. I'd really like to use this as a platform to do more performing and touring. I really like the live aspect of singing to an audience, that's what really excites me.
Are you worried about Simon's reaction?
Well, in the early stages of The X Factor, I remember that he wasn't particularly very nice to me, but he warmed to me as time went on.
Will George do enough to go through to the next rounds? Find out when Britain's Got Talent returns to our screens this weekend. Ant and Dec will host the main show, while Stephen Mulhern will present the ITV2 spin-off series, Britain's Got More Talent.
Britain's Got Talent returns on Saturday 12 April at 7.15pm on ITV1.
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