It's been an emotional week for Paris Hilton, whose dog of 14 years has died. Paris took to social media to share her sad news about Tinkerbell. "My heart is broken," the socialite said in an Instagram post on Tuesday. Paris also touched on their history, writing, "We went through so much together." The pint-size Chihuahua became one of the world's most famous pets in the early 2000s, with Paris taking her to red carpet events and on shopping trips. Tinkerbell also appeared on Paris and Nicole Richie's reality show, The Simple Life, and her extravagant doghouse was a hit on Instagram. Tinkerbell's passing comes less than a year after the socialite gave her a new pal. In September, Paris purchased a $13,000 puppy that weighed 11.6 ounces. Keep reading to see Paris's pictures and messages about Tinkerbell.