Mel C was surprised by how much her life changed when she had daughter Scarlet, now three, but says the little girl has made her a better person.
Mel C credits her daughter for helping her to become ''more confident and courageous''.
The 38-year-old singer - who split from her three-year-old daughter Scarlet's father, Thomas Starr, earlier this year after 10 years with him - admits she experienced ''difficult times'' when she first became a mum, and is surprised at just how much her life has changed since giving birth.
She said: ''I'm so much happier, more confident and courageous and it's all thanks to her.
''There were difficult times. In the middle of the night when she'd cry, then I'd start crying - but the rewards are fantastic.
''I knew when I got pregnant that things would never be the same again, but I didn't realise just how much things would change for me.''
Mel admits she found it ''really tough'' being away from Scarlet to tour musical 'Jesus Christ Superstar' - in which she played Mary Magdalene - and while she always feels ''guilty'' when she is away from her little one, she admits work is like a break because she is ''so exhausted'' from looking after her daughter.
She told Britain's OK! magazine: ''I had to go away for two weeks with the 'Jesus Christ Superstar' tour. It was really tough. I don't want to do something like that again.
''Being a stay-at-home mum is probably the hardest job because it's so exhausting looking after children.
''Sometimes coming to work feels like a break! But when you go to work, you do have this guilt. It's hard''.