Grace has been in this thread, but she does have her own music (and band)
Paris (Ooh La La) - Grace Potter and the Nocturnals.
I completely forgot about Steeleye Span and their lead singer, the incomparable Maddy Prior. Okay, it's old English folk songs done in rock style (or in this case, Gregorian chants) but the music...OMG..... They have been at it for something like 50 years and are still touring.
I love Steeleye and Maddy. I athink Gaudete may be the only top-40 single in England sung entirely in Latin. Here's one of their songs that rocks. Those interested might also check out All around my hat, Thomas the Rhymer, or The female drummer.
Yeah, I understand that, although by the time I was in college it was Kansas and Charlie Daniels. UNTIL -- I introduced them to Montrose, a 16-minute ballad about the hero who met his demise in the Scottish civil war. Everyone loved it. It was my daughter's favorite song when she was 8 or 9. Here on youtube with approximately correct lyrics:All Around My Hat was another of my favorites, 'way back when.My college friends always thought I was a little strange for liking these guys when everyone else (me, too, actually) was into Jefferson Airplane. So it goes.