You're trying to sleep when suddenly - flash! - there's some blinding white lights. When you open your eyes, the whole area is covered in blinding white lights and decorative strobe lighting that is someone hanging from a suddenly existant ceiling, if there wasn't one before.

At the end of the room are cakes and food. In the middle is an ice skating rink, lit up by hundreds of lights with the ice glittering back at them. There's also music, that is inaudiable until you get up to it, and it's suddenly almost all you can hear on the small dancing area this side of the rink. At the doorway to the place, there's a large group of terribly confused people.

For everyone is wearing santa outfits. It doesn't matter if you didn't come in it. Musebox god decrees santa outfits, so everyone suddenly spins-like-a-Sim and winds up in one, and it's NOT COMING OFF. Some are simply plain block colours, some are patterened, some have pictures on... in the end it's just a santa outfit.

There's also birthday cake because your modly-ness would like to remind people it is her birthday too, 'fo sho. :)