Simplify the following text for a Grade 9 native English-speaking person.
Original: Jewel Kilcher ( born May 23 , 1974 ) , professionally known as Jewel , is an American singer-songwriter , guitarist , actress , and poet .
Simplified: jpg thumb ( 376x599 ) px right Jewel ) ) Jewel Kilcher , known simply as Jewel , is an American singer-songwriter .