The irony of carving out his own identity on the show his very famous brother is a coach on is not lost on Chris Sebastian.

Chris is one of four finalists hoping to take outThe Voicetitle this year, the same show his brother Guy has been a coach on for two seasons.

"It's a weird scenario," Chris toldMamamiaahead of Sunday's finale.

Things I say while watching The Voice. Post continues below video.

"I'm trying to break out of only being identified as being the brother of Guy Sebastian, whilst being on a show that Guy's on. I get the irony. I hope people don't think it's lost on me," he said, saying despite this he never doubtedThe Voiceas the right platform for him to further his career.

"I think as far as integrity goes, there isn't another show that maintains that level of integrity. They'll drum up drama with the coaches, but they won't do it with the artists. They keep that really pure, and it's the only show that does that."

He's got nothing but positive words for the show and its production these days, even as the contestants, coaches and crew navigate the bizarre world that is filming a reality show during a pandemic. But it hasn't always been like this.

Chris appeared onThe Voice Australia's very first season and acknowledged it didn't go well. He previously said he felt like his story arch during that season was all about who his brother was.

Comparing that with this year is like "chalk and cheese", he toldMamamia.

"I did season one, it was an overseas show, an overseas format, they had to answer to people who were overseas. They were working out the kinks and I happened to be a good narrative to not be treated so great.

"I get that, it doesn't make it okay but I have that understanding of how TV works. I couldn't sing the praises of the current group of people working onThe Voiceenough, they are some of the nicest people I've ever met in my life."

Chris said he is grateful to know he is stepping into his own identity now after a long journey of doing music, just not quite how he wanted to.

"After season one I didn't stop. I think that's the assumption of a lot of people, that people go on this show and then they stop. But for me, I've actually been super busy since but what I've been super busy doing has not really been as Chris Sebastian.

"I write songs for a lot of people, I've been producing songs for a lot of people, but I've also been out on the road touring with groups like Peking Duk. I've been doing a lot of stuff, but not as Chris Sebastian and I've been trying, don't get me wrong, I've been trying to do it for an incredibly long time and it's been difficult for people to get past the fact I'm a Sebastian and my brother has obviously done as well as he has."

Chris was almost resigned to the idea of "being a singer in somebody else's band" when his wife told him she was pregnant with his daughter Ava, now four months old. That changed everything.

"It put this reignited fire in my belly, I can't resign myself to the fact that I'm going to sing other people's songs. I want to do this, and I can do this, andThe Voiceis the best way to make that happen," he said.

In the semi-final show earlier this week, Chris spoke to coach Kelly Rowland about his experience of trying to be seen as himself rather than as the brother of Guy Sebastian.

He was surprised when Kelly responded by saying she could relate, having had her career compared to her fellow Destiny's Child member Beyoncé. This was part of the reason he chose Kelly as his mentor for the season, as he felt like she could understand him.

"I wish I said that in the moment. I think I was so flustered, I had full-blown dry mouth from being so nervous," he laughed.

"That was my motivation... Kelly for me was someone who - well, she's been in a group and not only has she just been in a group, but she's been in a group with Beyoncé - and she's been able to have such a great career. I felt like she would get me better than anybody else.

"She understands the battles you face when you're in that position. She understands better than most that I have to think about everything.

"Like how she said she has to worry about what she wears, there were moments on the show where the wardrobe department would go 'why don't you try this?' and I had to say I can't do that, Guy wears things like that. I'm trying to do my own thing. That's something I think about on a daily basis, things I can't say, things that I do - I want to be careful to have my own identity and Kelly obviously has that same problem."