Mariah Carey's appearance on the Late Show with David Letterman aired last night as part of what was apparently THE night to be on late night! She performed the latest single (yes!) "H.A.T.E.U." off the underrated Memoirs Of An Imperfect Angel after sitting down for an interview, only some of which can be found in the video above... not that what we missed isn't predictable anyhow. I did, however, enjoy the "Are you selling M&M's?" line! As for the performance, it was OK. I wasn't blown away by any means, but at least she sang it live!