I think that happened once in one of Tohonifun's doujins?
Yeah, I read it and I really liked it!
If the prismrivers become a hard rock band, this would happen:
Reimu: HEY THERE MARISA!
Marisa: WHAAAT?
Reimu: HEEEEY THEEEERE, MARISAAAAAAA!
Marisa: I CAN'T HEAR YOU!
Reimu: WHAAAAAT?
Marisa: UUUH?
What if Yukari showed Gensokyo Gangnam Style and tried to make them do it with her?