After telling Rolling Stone last year that Queen were in discussions about performing at the Sphere in Las Vegas, guitarist Brian May has now ruled out any American concerts for the foreseeable future. “It’s very sad because I feel like Queen grew up in America and we love it, but it’s not what it was. Everyone is thinking twice about going there at the moment.”Last year, during a Rolling Stone interview for the 50th anniversary of “Bohemian Rhapsody,” May had been effusive about the prospects of a Vegas residency. The stuff that we could bring to this would be stupendous.’ So, yeah, I would like to do it. “There are a couple of things you haven’t heard… I don’t know when Queen will be back on stage — it’s an unknown.