A resurfaced clip of Fallon wearing blackface while impersonating Chris Rock on Twitter prompted the hashtag #jimmyfallonisoverparty early Tuesday. On Tuesday afternoon, The Tonight Show host apologized via Twitter. "In 2000, while on SNL, I made a terrible decision to do an impersonation of Chris Rock while in blackface. There is no excuse for this," he tweeted. "I am very sorry for making this unquestionably offensive decision and thank all of you for holding me accountable."