Kelly Clarkson has "never been more confident as a woman" since she became a mother.

Kelly Clarkson

Kelly Clarkson

The 'Because of You' hitmaker - who has River Rose, two, and Remington Alexander, seven months, with her husband Brandon Blackstock - feels she is really "nailing it" as a mother.

She said: "I have never been more confident as a woman as I am as a mother. I feel like I am nailing it."

And the 34-year-old singer is also stepmother to Brandon's two children - Savannah and Seth - and is very proud of how she balances her family life, career and marriage.

She added: "We have a blended family that is another level of trying to make it work and everyone feeling as equally loved and important. And then also just having a marriage and having a career and having everything. It is a lot.

"I am more confident now because of all these things my life now entails. And when you are put in charge of someone not only as a business - I employ a lot of people - but also there are four lives I am a part of molding, and that is a big responsibility. And with that responsibility, I feel like it kind of brings this different level of like, 'I've got this. I might cry my way through this, this morning but I am going to make it and it is going to be good in the end.'"

And Kelly admits she is a lot more "selfless" now than she was in her 20s as her priorities have changed.

She told Entertainment Tonight: "The Kelly now and the Kelly of my 20s, that is the difference between selfish and selfless. Because when you are 20 you are supposed to be a little selfish and do all your drama. And then in your 30s you have to get [your life] a little more together ... Priorities change.

"I used to [think] everything was so important with work. And it is still important, but I am not a brain surgeon so no one is dying on a table if I do not record a song. It is OK if I go to art class with my daughter instead."