This U2inSL concert from last year had me thinkign lately about if and when an animated Second Life concert will become apart of a bands tour schedule.
There is a lot that could be done here such as the first 100,000 CD's have a code that you can use to go online and recieve free SL concert tickets. Or what about setting up a create your own concert selection on SL. Literally create a playlist then watch the concert. Labels could let you pick from a selection of bands and make your own Personal Lollapaloza.
Lately I have read the SL is on the decline so this may not be that close but I imagine it is coming.