Good find OP. In for one. Party Classics is available stand alone, so more options on that one in the future hopefully, used if it comes to that. Gotta get some use out of the semi useless $10 Gamestop codes.
I'll be up to 4 microsoft Microphones when I get this bundle. Oh well, at least no wires now on 4 Player Guitar Hero 5 Karaoke nights!
Are there any other games where you can sing with all four players? Beatles is just 3 isn't it only on some songs? Band Hero maybe, haven't tried that or Lego Rock Band.