The nihongo, was the 56th edition of annual NHK's Kōhaku Uta Gassen, held in December 31, 2005 live from NHK Hall (Tokyo, Japan). It was broadcast in Japan through NHK General Television (TV), NHK Radio 1 (Radio), and worldwide through NHK World Premium . This event was filmed and aired from NHK Hall in Japan. Airtime was from 19:20 to 23:45 (with an interruption from 21:25 to 21:30 for news). All times are JST. Viewership ratings in Kantō Region: 42.9%