^haha true, i guess I never paid much attention
hmmm i listened to TK's Throwin'down in the double 0 and if that is his voice singing it sounds pretty cool, different from his voice in the back vocals....
Some songs I can hear his back vocals are:
namie - RESPECT the POWER OF LOVE, How To Be A Girl, a walk in the park, CAN YOU CELEBRATE
hitomi - In the future, pretty eyes
globe - FREEDOM, Joy to the love, Feel like dance (MARC sings too and his voice is pretty good so be careful not get the voices confused/mistaken)
you can hear it better in the instrumental tracks specially in the chorus...