There's nothing like a letter from the Boss to get you out of school.

Michael Fenerty, a fifth grader at Masterman School in Philadelphia, is Bruce Springsteen's ultimate fan!

Fenerty's father, Mike, who is also a huge fan of the 67-year-old singer and a Springsteen memorabilia collector, took his son to Springsteen's fan meet-and-greet at the Free Library of Philly on Thursday but there was a small catch.

"It was the first day of school for the fifth grade at Masterman, and of course Bruce played his longest show," Michael's father told Philly.com. "As a fan I loved it; as a parent I hated it. I wanted to kill him!"

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Assuming the show would finish late, the father-son duo planned ahead and typed an absence note to get Michael out of school the next day. They brought the note with them and hoped for the best.

When they got into the event, Michael made sure to get Springsteen's signature.

"My son said, 'Bruce, would you sign my absence note?' [Springsteen] lit up. He was affectionate toward Michael as soon as he saw him. He said, 'I have to read it first, that's how I got in trouble with my first contract,'" Mike explained. "He said, 'I hope you don't get in trouble.' My son was very starstruck, it was a very cool experience."

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After the event, Mike confessed he couldn't give up such a cool piece of Springsteen memorabilia, so he made a photocopy of the letter to give to the school's principal and kept the original. Smart move!