She squared off against former Beatle Paul McCartney in divorce court; on Thursday, Heather Mills took on Piers Morgan at Britain's media ethics inquiry.
A tense and sometimes hostile Piers Morgan has refused to disclose details about the most damning link between himself and Britain's phone hacking scandal _ his acknowledgment that he once listened to a phone message left by Paul McCartney for his then-wife Heather Mills.

CNN celebrity interviewer Piers Morgan was an extremely hands-on tabloid editor who must have known that phone hacking was rife at his paper, a former employee claimed Wednesday.
The former editor of the News of the World has lost a legal bid to make the owner of the now-defunct newspaper pay his legal bills.
CNN celebrity interviewer Piers Morgan was an extremely hands-on tabloid editor who must have known that phone hacking was rife at his paper, a former employee claimed Wednesday, the Associated Press reports.
CNN celebrity interviewer Piers Morgan was an extremely hands-on tabloid editor who must have known that phone hacking was rife at his paper, a former employee claimed Wednesday.
A tense and sometimes hostile Piers Morgan has refused to disclose details about the most damning link between himself and Britain's phone hacking scandal _ his acknowledgment that he once listened to a phone message left by Paul McCartney for his then-wife Heather Mills.
Rupert Murdoch and his son James first refused, then agreed to appear before U.K. lawmakers investigating phone hacking and police bribery, while in the U.S., the FBI opened a review into allegations the Murdoch media empire sought to hack into the phones of Sept. 11 victims.
Rupert Murdoch and his son James first refused, then agreed Thursday to appear before U.K. lawmakers investigating phone hacking and police bribery, while in the U.S., the FBI opened a review into allegations the Murdoch media empire sought to hack into the phones of Sept. 11 victims.