For those preparing to partake in Saturday’s SantaCon, in which hundreds of partygoers dressed as Santa and his helpers wander the streets of Manhattan singing raunchy carols, the Xmas Pop Sing-Along and SantaCon Pre-Party will surely give you something to feel jolly about. Enjoy $7 rum egg nogs, specialty drinks such as “The Naughty List,” and free milk and cookies all night as you sing holiday hits, with music videos by Mariah Carey, Adam Sandler, ’N Sync, and others shown on the big screen. Enter contests for the best and worst holiday sweater, best Santa costume, and for being the most naughty and most nice. At the end of the night, the SantaCon starting locations will be revealed, and there will be some “guerrilla caroling” outside afterward for those who want a little practice before the big day.

Fri., Dec. 9, 10 p.m., 2011