Here's an excerpt from that speech:
Now, this week I received a letter from a girl in New Jersey named Payton Wall. She wrote to me on Monday after the news that bin Laden had been killed, and she explained how she still remembers that September morning almost 10 years ago. She was only four years old. Her father, Glen, was trapped inside the World Trade Center. And so, in those final, frantic moments, knowing he might not make it, he called home. And Payton remembers watching her mom sobbing as she spoke to her husband and then passed the phone to Payton. And in words that were hard to hear but which she's never forgotten, he said to her, "I love you Payton, and I will always be watching over you.Wall, who lives in Rumson, NJ, opened up about her 1,500-word letter to the President to the Post. She noted that she and her friend Madison Robertson, who also lost her father on 9/11, were inspired to tell their stories after seeing Bieber's movie Never Say Never: "We were so amazed by his story and how he never said never. It inspired us to believe in our selves and share our story to encourage others." She actually tried contacting Bieber first, through Twitter, but when he didn't respond, she wrote to the President. The next day, the White House called her mother, Diane, who had no idea about the letter, and invited Payton, her mother and her sister, Avery, to Thursday's ceremony.
When she met him, the President also told her that he "knows Justin" and that he would help arrange a meeting between the two. Wall said she was absolutely thrilled, but "I just don't want it to seem like I only wrote the letter to meet Justin Bieber. I did it to honor my father. My father is the reason that we all came together today. I miss and love him and don't go a day without thinking about him."