Oh, I guess I can link to this one. Jeff Lynne cracks me up.

Beethoven's Fifth Symphony - Rock and Roll style (ELO)

 Quote:
"Roll Over Beethoven" was orginally a 1956 hit single by Chuck Berry. Electric Light Orchestra's elaborate reworking of the track included an opening musical quote from Beethoven's Fifth symphony; the band closed all their concerts using this number, their signature song.