Use this artist in your widgets
JSON (widget format)
https://shoutcastwidgets.com/ArtistLibrary/library/?artist=OTOMACHI-UNA-AND-KAGAMINE-RIN
JSON v2 (photo sizes)
https://shoutcastwidgets.com/ArtistLibrary/v2/api/?artist=OTOMACHI-UNA-AND-KAGAMINE-RIN
API documentation →
