Thunderstorm Artis, Allegra Miles, Samantha Howell sparkle on The Voice
Eight more singers earned spots on Season 18 of The Voice Monday night. John Legend landed the night’s only four-chair turn. That was earned by Thunderstorm Artis with a splendid acoustic version of “Blackbird.” But Nick Jonas and Kelly Clarkson landed talented young female artists in Allegra Miles and Samantha Howell, respectively. And watch out…