Title: Muon Colliders: Motivation and Prospects


High energy lepton colliders have captured the imagination of the particle physics community. Over the last decade the concepts and technologies required to produce, capture, cool, and accelerate O(10^21) muons per year have been studied, opening the way towards a multi-TeV muon collider. Muon Collider motivation and challenges will be summarized, together with recent R&D progress and prospects for the future.