'X Factor's' Beatrice Miller Signed

"X Factor" contestant Beatrice Miller has been signed by a label, she confirmed Monday in an "Extra" live chat on Spreecast.com.

Beatrice, who was mentored by Britney Spears, revealed to interviewer Arthur Kade, "I just got signed, but I can't tell you any details."

The 13-year old NY native's first professional performance was at the U.S. Open in 2008, at the age of 9, where she sang "America the Beautiful" in front of 24,000 people.