Diem Brown wasn't just beloved by her "Challenge" family -- her charming personality (complete with memorable dance moves) and "live life to the fullest" mantra, as well as her tremendous resilience as she battled cancer, endeared her to countless fans.
When the tragic news broke that the MTV star died today (November 14) at the age of 32, those who admired the unbelievable soul immediately turned to Twitter to express their heartbreak. We've rounded up a bunch of the most emotional tributes:
Rest easy in heaven, D. Remember Diem with a look back at her most memorable "Challenge" moments.
Those who need help dealing with a loss should visit Half of Us.