Robert Plant is the 1970s rock vocalist to beat all of the others. Sure, he can be histrionic and downright silly on a lot of the classic Led Zeppelin stuff — especially when you realize he’s singing about Tolkein and Vikings and stuff — but it’s impossible to think of any of those great songs sung by anyone else. He’s also notorious for having great taste, from covering Blind Willie Johnson to drawing people’s attention to the work of Skip Spence, and other lesser known artists. Even if he invested all of his money in Radio Shack, the guy certainly doesn’t need to tour and make records these days for money. Plant is touring now in support of Lullaby and the Ceaseless Roar, a record Plant called “celebratory” and “powerful, gritty, African, Trance meets Zep.” While he really should have stolen Nick Cave’s backing band (which would be fine, since Cave himself stole his band members from the Dirty Three and Neubauten) if he wanted to head into these sort of darker waters, he also could have done a lot worse. The record’s just OK, but the peeks on YouTube that we’ve had of his performances with this outfit confirm that will be an awesome live show. Some kids from Boston called the Pixies, who sing like cats being violently squeezed, open the show.