Who is who?

I always have this happen. Which one is Matt and Trey. Is Trey the big-haired one with glasses?

Trey's the blonde one who does most of the talking during interviews. Matt's the one who needs a stylist.

Marguerrite, Hunter of the Infamous Matt and Trey (they call me Kim, but I know better) Aka Crabtree-Norn "Sit down and shut up!" "&^*$ Censorship!"-originated on alt.tv.southpark

GUMPELS wrote:

There's a picture of Matt Stone at 8 years old in that one Rolling Stone, and he has the 'fro and the glasses even then.