Prince's performance at the "SNL 40" after-party in February 2015 had previously been the stuff of late-night lore. Shortly after it happened, Jimmy Fallon excitedly told the tale of the epic act on ...

Comedian Norm Macdonald took to Twitter Wednesday evening to share a long but fascinating account about the behind-the-scenes drama that preceded "Saturday Night Live's" 40th anniversary extravaganza.

The general consensus concerning SNL's 40th season is that it's on the weak side, but there's no question Prince's live performance will go down as one of the show's finest. After a short introduction ...