Universal reportedly close to Google music deal, just in time for tomorrow's events

We've got a couple of music-related Google events coming up tomorrow. There's the one with Busta Rhymes and Drake and, of course, the one with the miniature Stonehenge. Aside from the aforementioned entertainment, what can we expect? Rumors are pointing to a proper Google Music launch, including the opening up of a music store -- one apparently backed by the labels this time around. EMI is reportedly on board, and according to sources at Bloomberg, Universal isn't too far behind either. Google, naturally, isn't talking.

Update: According to the Wall Street Journal, Sony is expected to be on the guest list as well -- only a few more hours until we know for sure.