ELMA, NY - A former Saturday Night Live star was in Western New York this week to help an Elma teenager pull off the ultimate senior prank.
Bill hader surprised the students At Iroquois High School on Thursday during an assembly.
It was all set up by senior student Grace Aroune.
The teen, who is battling thyroid cancer, got some help from the Make A Wish Foundation.
She explained what it was like when her classmates realized who Hader was.
"The scream," she said, "it hit the floor and it just erupted -- the sound when he hit those doors, it was just nuts. They were all so excited."
Hader took the time to hang out with the students and celebrate the end of the school year with them.
Grace says she wanted to do something really cool at her school as a way to thank them for supporting her as she battled her cancer.
