The Boss was performing "Waitin' on a Sunny Day" at a concert in Oslo, Norway. A 4-year old girl named Hope was in the front row, thoroughly enjoying the music. She caught his attention. Springsteen invited Hope on stage and sang to her, then let her give a solo performance.
When they were done, he lifted Hope onto one of his shoulders and carried her around. Before she left, Springsteen gave Hope his harmonica. I hope that he wrote her a tardy note, too!
-via Tastefully Offensive