A hand-painted sign stopped George Strait mid-song at AT&T Stadium: “I got into Stanford. You said we’d sing.” The promise was made years ago to a 9-year-old foster girl with a dream. Tonight, that girl, now a Stanford scholar, stepped onto the stage. As they sang “I Cross My Heart,” her once-quivering voice grew strong, turning a stadium of thousands into a silent, tearful audience witnessing the beautiful sound of a promise fulfilled.
At Dallas’s AT&T Stadium, the music came to a sudden stop. George Strait, the legendary King of Country, lowered his…