"It wasn't a matter of thinking whether I was going to make it or not, it was just hearing the words, 'The first one in the finals is Lee.' It's not like I was excited because, 'Oh, thank God, I was worried.' I was waiting to hear him say it one way or the other," Dewyze toldUSA Today following Wednesday night's live results show.
"Whatever he said, I was going to go out smiling and once he put me through, I was excited."
Dewyze will face Crystal Bowersox for American Idol's ninth-season title, and he said he's been focused on winning since he auditioned last summer.
"You try out with the intentions of winning and you hope to win," Dewyze told USA Today.
"I'm the kind of person who is not going to do something if I don't feel I can do it. When I said I was going to audition, I completely prepared myself to give everything I could to get to this point. I'm just so glad it paid off. It feels amazing. There are a lot of talented people out there that would kill for this opportunity. There's so much undiscovered talent out there and I feel so grateful and blessed to be the person able to go through that process and be where I'm at."
Bowersox -- who USA Todayreported won Wednesday night's coin toss and chose to go second during next Tuesday's performance show -- said she also has her eyes on the prize but would be happy either way.
"You put so much into it to get this far," she told USA Today. "I'm cool with whatever happens, but of course I want to win."
Dewyze declined to tell viewers they should vote for him and instead hopes to show them why next Tuesday night.
"I'm going to perform next week and I know I'm going to give it everything I have," he told USA Today. "Hopefully, I'll give them a reason to pick me."
"I need lots of money to give to charities and to start my foundation for juvenile diabetes. It's not for research. It's for taking care of issues now," she told USA Today.
"My goal is to set up something where there can be screening clinics where once you have the diagnosis, they can treat the problem and pharmaceutical companies can donate medicine and supplies. That's my goal... People should never go without insulin. In my life at points, I've begged for insulin outside of pharmacies and no one should ever have to do that."
Bowersox has been the only female finalist left in the competition for the last three weeks and she is the first female finalist to make the Top 2 since Jordin Sparks' wonAmerican Idol's seventh season in 2007.
"That worried me a little bit with the fact the girls went away so quickly," she told USA Today. "But I hung in there. I kind of consider myself one of the guys, anyway."
American Idol's final ninth-season performance show will air live next Tuesday at 8PM ET/PT before the is crowned at the conclusion of Wednesday night's live 127-minute results show, which begins at 8PM ET/PT.