TRUEISM: Girls that are in a band (notice I said bands, which eliminates the "popular" ones, i.e. P!NK, Lady Gaga, Katy Perry, Etc.) are awesome. When they drop their vocal cords on tune, it makes your hair stand up. It feels so good and right you wish they had that on tap. You'd become an heavy drinker of that feeling.
I wish I had found these women, but I didn't. In no particular order, here are some (somewhat recent and are all pretty much in indie) ladies that do it well.