Simplify the following text for a Grade 7 native English-speaking person.
Original: Geraldine Estelle `` Geri '' Halliwell ( born 6 August 1972 ) is an English pop singer-songwriter , author , actress and philanthropist .
Simplified: Geraldine Estelle `` Geri '' Halliwell ( born 6 August 1972 ) is an English pop music singer .