On Christmas Eve (Seiya no Yoru ni - 聖夜の夜に) is the 22nd episode of THE iDOLM@STER anime series. It first aired on December 2nd, 2011.
It's the Christmas season and Haruka wants to celebrate a Christmas Eve Party with everyone at 765 Pro just like last year. But with the idols' new fame, all of the girls are busy attending and performing at TV shows, Variety Shows, Holiday or Christmas Specials on Christmas Eve and most of them might not make it in time. Nevertheless, the Producer assures Haruka that he will try his best to get everyone for the party. During her dancing sessions, Haruka learns from the Producer that he has manage to get both she and Miki audition for the musical Spring Storm for the lead role. On Christmas Eve and finishing her work, Haruka accepts not everyone can make it for the party and decide to make the best of it. After buying a cake and a Christmas present for the Producer, Haruka arrives at 765 Pro studios with Chihaya and much to their surprise, some of the idols managed to make it for the party thanks to the Producer rescheduling their gigs. With the Producer and Miki the last to arrive, everyone eats the cakes they all bought and celebrate Christmas including Yukiho's birthday, until Junjirō announces to everyone that he has just received a call that Miki has won the Shining Idol New Artist Award. As the party continues, Haruka has a talk with Makoto, Iori and Chihaya on how their careers have changed and they might not be able celebrate together like this again but Chihaya and Haruka are still hopeful that all of them can still celebrate Christmas together.
Happy Christmas! by 765 Pro Allstars.