In 1980 Mayor Ed Koch and Patti Lupone (winner of a Tony Award that year for the title role in Evita) celebrated the holidays by kissing during a Christmas tree lighting. (See above.) This is one of my favorite holiday photos available on the La Guardia and Wagner Archives website. You can see more by searching for them at http://www.laguardiawagnerarchive.lagcc.cuny.edu/ I found this one using "Christmas" as a keyword in a photo search.
Wishing you all a Happy New Year.