Suggestions?

So, Chris Olsen and I are working on booking the next band to play at Riv. We have some ideas and have made some contacts but I just wanted to see if anybody had any suggestions for who they would like to see play. At this point, we are just putting all of our energy into having Celine Dion play, but that would mean we would have to make Riv into a casino and build a stage approximately 27 times the current size, so logistically we are running into some issues. I am racking my brain for anybody in the same ballpark as Celine, but obviously am coming up blank, so your help would be much appreciated.