Charlotte Church says her mother still remains "very involved" in her career despite reports she has been sacked as her manager.
The 16-year-old says her mother and stepfather, James, had never been her official managers but acted as her "most trusted advisers" in her career.
Reports claim the soprano had ditched her mum because of rumoured arguments over the boyfriend she disapproves of.
But Charlotte admits her parents' involvement in her career has reached a different level because of her growing independence.
The statement reads: "My mother did an amazing job in matters of my career and of course has always been a terrific mother.
"She still remains very involved in my career but obviously on a different level due to my growing independence and own experience.
"Now that I have completed by studies, everyone is in agreement that it is the appropriate time for me to embark on my US tour with my management and tour staff."
Charlotte also thanked her parents for protecting her through the ups and downs of the media.