Simplify the following text for a Grade 6 native English-speaking person.
Original: Gary Glitter ( born Paul Francis Gadd ; 8 May 1944 ) is an English former glam rock singer-songwriter and musician .
Simplified: Gary Glitter ( born Paul Francis Gadd ) is a British glam rock singer . He was born on 8 May 1944 in Banbury , Oxfordshire .