Simplify the following text for a Grade 6 native English-speaking person.
Original: Sertab Erener ( born 4 December 1964 in Istanbul ) is a Turkish pop music singer and also a cross-over soprano with a vocal range that extends to high F. She is one of the most successful female Turkish pop singers in her homeland , and is considered one of the divas of Turkish pop music .
Simplified: Sertab Erener ( born December 4 , 1964 ) is a Turkish pop music singer . She is one of the most successful female Turkish pop singers in Turkey .