New Year's Eve 2004 was a special New Year's Eve Cartoon Network special. The special began on Friday December 31, 2004 with a four-hour special edition of Fridays. Real life Japanese pop duo Puffy AmiYumi, joined the Fridays on-air hosts Tommy and Nzinga at 11:55 pm for the countdown to midnight that then launched into a 4-hour marathon of Hi Hi Puffy AmiYumi that began at 12:00 am. The Japanese Pop duo also performed two songs during the special including the theme song from Hi Hi Puffy AmiYumi.