The 50th-anniversary special for Saturday Night Live was packed with surprise celebrity guests. But, nobody expected Aubrey Plaza to make her first public appearance since her husband's shocking suicide earlier this year . In a bittersweet, moment, during one very brief segment of SNL 50 , Plaza managed to pay tribute to the memory of her late husband, Jeff Baena. While introducing Miley Cyrus, Brittany Howard, and The Roots—for their version of "Nothing Compares 2 U,...