The 49-year-old songstress, who is mum to four-year-old Wyatt Steven and one-year-old Levi James, admitted that she is strict with them at times.
Speaking to Prevention Magazine, she said: 'They have to understand that somebody's in charge and sometimes the answer is no. It's about being consistent.'
She added: 'I really think that you do them a disservice when they get out into the world and they realise they're not entitled to have everything.
'I think we've got to that place where parenting’s been equated with making a child happy.'