Replacement Song?

On Lifetime, the reruns sometimes have the Maxine Nightengale song "Right Back Where We Started From", which is clearly the song most people associate with Wife Swap. However, many episodes have some song that sounds totally fake in its place. Something about "Back where she belongs, been so long" etc.

Can anyone tell me if this is fake replacement music for syndication? I absolutely hate it and Google tells me NOTHING. If it is replacement music, how come only some episodes use it?