UPDATE: THEY'RE BACK!!! E:   UPDATE:   The My GN'R CSI Team has done some fact finding.....this is what we discovered....   1. Billboard stated that there will most likely be a LA club warm up gig and that it would probably be the Troubadour.  They announced that GN'R would do a 25 stadium tour back in JANUARY....well before anyone else.  So it's safe to say that Billboard's sources are solid. 2. A reliable source told a member o