Linking between 2 MC's

Hi,
I’ve searched through the forums for an aswer to this but I haven’t found one yet.

I’m trying to have one MC’s button goto and play a label of another MC, i’ve tried a couple ways but havn’t figured it out yet, please help!

Here is one of the ways I’ve tried:

on (release){
_MC2.gotoAndPlay(“label”);
}

Thanks for the help!
-The Dr.