Groups
- simple plan 1
- singing-dog 1
- sinocentre 1
- sinus 1
- sinyoukan 1
- sio ra-men 1
- siro-noir 1
- sirokuma meganeten 1
- sisaku 1
- sisi 1
- sisinabeya 1
- sisiten. 1
- sisizanoa 1
- sisteralice 1
- sisterbreak 1
- sisterplan 1
- sisui sisters 1
- siteado 1
- situkisinnra 1
- sjiku 1
- sk01 1
- skeban 1
- skinboy 1
- sky cloister 1
- sky gazer 1
- sky high 1
- sky hope 1
- sky team 1
- slave-company 1
- slice salami 1
- slime mint 1
- slime soft 1
- sling kyoudan 1
- slitpark 1
- sliver ion 1
- slo 1
- slow 1
- slow heights 1
- slowpit 1
- smack 1
- smash box 1
- smaverick 1
- smaverik 1
- smg 1
- smile welt 1
- smile-cafe. 1
- smith koumuten 1
- smocle 1
- smomogamex 1
- sn 1