Good Zoom lens for concert (Canon EOS D500)?

the only lens that i can see that would be useful to you around your budget would be the canon 55-250mm lens but that's a telephoto zoom not just a standard zoom.if you want an upgrade to your lens, then i suggest you save up your money and either get the canon 18-135mm or if your willing to pay the price, the canon 15-85mm which is an excellent lens but at a premium price.