This is probably a newbish question, but I'm not sure, and I'm posting this here instead of the RB section because I don't want to be burnt to a crisp. I'm sure some of my buds here has the right answer for me.
The other day I was playing online quickplay and I noticed that some dudes had their guitar and drum (2 guys using the same PSN ID) icons in platinum color instead of the normal black and white. You know the icon I'm talking about right?. The one when you are choosing which instrument to play before the songs starts. What does that mean? or how do you get that?. I'ts the first time I had seen it, and I've been playing online since the game launched.