Complex sentence: Photographer Terry Richardson took photos of the backstage activities which revealed that a second purple jacket was also worn by Gaga and it was bejeweled and emblazoned with the word "Gaga" on the rear side.
Split into simpler sentences: Photographer Terry Richardson took photos of the backstage activities which revealed that a second purple jacket was also worn by Gaga. The bejewelled jacket was emblazed with the word "Gaga" on the rear side.