Located at Bally's hotel and casino in Las Vegas, Indigo Lounge is a small lounge that opens up to the casino gaming floor. There is a front area for live music. A small (very small) dance floor. Several small circular tables for two. And a DJ in the back.
It is free (and there is no drink minimum). Late at night, a cover band was playing--they seemed to focus on 80s rock music. They were pretty good. And the lead guy was kinda funny. They did requests, but they admitted that they didn't know the lines to most of the songs (which resulted in some interesting butchering of songs).
At the very end of the night after the live entertainment ended, there was some dancing (a short period of time--maybe 3:15am to 4:00am). It was not that busy. The DJ played Sir Mix-a-Lot's "Baby Got Back," which resulted in some very interesting dancing from a young woman who was struggling to maintain her yard stick drink (some blue concoction) and maybe even her dress (similar to the first J. Lo dress that caused all that hoopla)...but to be honest, she was struggling with both.
If you are in Las Vegas and are looking for live music/and some dancing (though limited) but don't want to pay a high cover fee or get stuck in an overcrowded place, maybe you should give Indigo Lounge a chance.