The Hollywood sign is set to take centre stage as it undergoes a live-streamed makeover for its 100th birthday next year. The 45ft-high letters, on a steep hillside in Griffith Park, has featured in scores of movies and been described as Hollywood’s biggest celebrity. Sherwin-Williams, an Ohio-based paint and coating manufacturer, has been contracted to carry out the work. From September 19 a crew of ten workers will prime and paint the sign, which was last refurbished in 2012. Each letter…