Mixi wrote:The last (and only) time he composed a song for a Johnny's group was in 2001 when he wrote and produced Hitoribocchi no Haburashi for TOKIO. So glad Tsunku is still writing for other groups.
^Tsunku also composed a song for Nagase Tomoyas solo single (as Sakuraba Yuichiro), for Tsuyoshi Kusanagi's solo single (as Chonankan)
and for albums - he composed a few times for TOKIO and made a song for one of SMAP's albums... don't remember which album though.
edit- the album song is Katori Shingo's solo song がんばれ王子 from the album MIJ.