How do you invite friends Into Guitar Hero 3 on PS3?

There is no option on the create match Section and I Would Like to play with a Friend, Please help.
How do you invite friends Into Guitar Hero 3 on PS3?
Hey... soz but the PS3 version doesn't have any option to invite a friend into a game, so if you go with that version you'll probably wind up playing with more strangers than anything else. Sorry bout dat