"voiceover personalities" in alisha's introduction to the song compilation infomercial segment

When Alisha introduces the song compilation infomercial game she refers to Colin and Ryan as two "voiceover personalities". Why? Voiceover artists add thier spoken voices to previously shot video or radio commercials. Why does that have to do with the music industry? Colin and Ryan are obvious doing a parity of an "on camera" infomercial with barely known celebrity personalities pitching a CD compilation. Therefore, something like "former music personalities" seems much more appropriate IMHO. Has anyone else noticed this? Does it bother anyone else?