 In December 2005, Minogue released a digital-only single, "Over the Rainbow", a live recording from her Showgirl tour.Her children's book, "The Showgirl Princess", written during her period of convalescence, was published in October 2006, and her perfume, "Darling", was launched in November.The range was later augmented by eau de toilettes including Pink Sparkle, Couture and Inverse.