Kind-hearted singer Britney Spears has been doing her bit for charity in her home state.

The OOPS... I DID IT AGAIN singer and her mum LYNNE went to Baton Rouge in her native state of Louisiana to head up a cancer awareness event.

Writing on the star's official website, Lynne says, "Fifteen hundred people were given the diagnostic test for colon, breast and prostate cancer. If just one life benefited from the screening, we have served our purpose. Hopefully, this will encourage others to have yearly check-ups."