Complex sentence: In concert, Primus started introducing all of their other songs by saying "This next song is" not "Tommy the Cat", apparently due to the popularity the song had gained after a video was released and played on MTV.
Split into simpler sentences: In concert, Primus started introducing all of their other songs by saying "This next song is" not "Tommy the Cat". This was apparently due to the popularity the song had gained after a video was released and received airplay on MTV.