Has anyone seen either of these shows or heard any feedback about them? http://www.rivierahotel.com/forever-motor-city.aspx http://www.rivierahotel.com/las-vegas-entertainment/forever-doo-wop.aspx I am a compulsive planner and working on my spreadsheet to fit in as many shows as possible during my October trip. I stumbled upon these two, which I've never heard of! Both are my kind of music. Riviera holds no appeal to me and I haven't been there in decades. Worth bothering with? Would appreciate any feedback or information. Thanks!