Doremidan (ドレミ團) was a Japanese visual kei rock band formed on January 1, 2002 by singer Makoto and drummer Reika.
They played their first one-man concert on December 12, the same day as Haruhi and Ko-zi left the band along with the support member Syuren.
With two guitarists and a bassist missing the two remaining artist took a small break to recruit new members and was back again on the first day of 2003.
Since Haruhi had been the main songwriter and as he left the band and his role was now taken over by Maya and Ken with Makoto writing the lyrics the music style was slightly changed from the old Doremidan.
In October 2004 the Maya left the band after the final concert of their small one-man tour and was replaced by Shinji in 2005.