What if we signed up and then it turns out we are tottally changing what we are doing. I was doing a duet but now i have to do a different performance, solo.. T__T
The only issue I see here is the change in the number of people in your group. At the audition be sure to let us know that it will only be you. That can't change from audition to contest. If you audition as two, you can't compete with a different amount. Can't change members in between either.
You can do a duet? O.O
Sure can. So long as you follow the above rule.
What if we signed up with a song, then found out it wasn't on your list? Can we change it while at the con so we can still sing a different song?
You can. You can also sing one sing at auditions and another at contest. Or...
Are we allowed to bring our own cds with the music we want to perform on it?
...you can bring your own music, and perform with that. I strongly recommend original discs. Clearly mark whatever you bring. The rules for format, etc. are still up on the main page, under the contest link, or just click here