If you're awake right now, you can catch a live show featuring all three members of Hop Step Sing! live on either YouTube or Nico Nico. You can even watch via your HTC Vive headset!
https://youtu.be/0AORPP1Kxao
http://live.nicovideo.jp/gate/lv309492848
And for those of you who haven't yet, what better opportunity to pick up Hop Step Sing!'s singles during the Winter Sale:
http://store.steampowered.com/app/538000/Hop_Step_Sing_Kisekiteki_Shining_HQ_Edition/
http://store.steampowered.com/app/646530
http://store.steampowered.com/app/689710/Hop_Step_Sing_KimamaniSummer_vacation_HQ_Edition/
You can even get the whole set via the fan club bundle:
http://store.steampowered.com/bundle/3859/Hop_Step_Sing_Fan_Club/