both bands sa AM IDOL and Rockstar are both !@#$%^ good its just that sa AM IDOL they cover are lot of styles, whereas sa Rockstar talagang rock at its finest. saka puro session/studio musicians sila. but sa rockstar the singers sing with the band and that's why talagang feel na feel nila. sa AM IDOL naman its just the singer in front and the band stays at the back kasi nga naman its a singing contest.
I remember when Tommy Lee sat in and jammed, talagang naiba ang tunog, its really his forte, although okay din yung drummer na si Nate Morton.
back to topic naman. "Aurora" was my favorite duon sa live album (70's).