There are two known acts using the name "RPM": (1) RPM, or Real Pinoy Music, and; (2) RPM, or Revoluções por Minuto.
These are photos from concerts where RPM played, so they may be of other bands that played the concert as well.
RPM Jul 15, 2012 Porto Alegre, Rio Grande do Sul, Brazil Uploaded by Poa Fm
Shabang '96 Jun 21 - 23, 1996 Oshkosh, Wisconsin, United States Uploaded by High5in