Last year at this time, the boys of TVXQ / DBSK / Tohoshinki were bestowed the honor of performing on NHK's prestigious Kohaku. For those that don't know what Kohaku is and how it's such a big deal, here's an excerpt from wikipedia which explains it pretty well:

"Kohaku Uta Gassen more commonly known as simply Kohaku, is an annual music show on the New Year's Eve produced by Japanese public broadcaster NHK and broadcast on both television and radio, nationally and internationally by NHK's networks and some overseas (mainly cable) broadcasters which bought the program... Literally "Red and White Song Battle," the program divides the most popular music artists of the year into competing teams of red and white. The "red" team or akagumi is composed of all female artists (or groups with female vocals), while the "white" team or shirogumi is all male (or groups with male vocals). The honor of performing on Kohaku is strictly by invitation, so only the most successful J-POP artists and enka singers can perform. Even today, a performance on Kohaku is said to be a big highlight in a singer's career because of the show's large reach."