Simplify the following text for a Grade 9 native English-speaking person.
Original: Mickie Laree James ( born August 31 , 1979 ) , better known simply as Mickie James , is an American professional wrestler and singer of mixed Native American-Caucasian descent , currently signed to Total Nonstop Action Wrestling ( TNA ) .
Simplified: Mickie Laree James ( born August 31 , 1979 ) is an American professional wrestler who is currently working for TNA .