TULSA, Oklahoma - Freshmen arriving for the first day of classes at Tulsa's Bishop Kelley High School Tuesday participated in the annual event called "Kiss Mom Goodbye."

Every year since 2000, freshmen arriving on campus are welcomed by the seniors with signs encouraging them to kiss their moms goodbye.

"Kiss Mom Goodbye" started as a way to replace the senior prank and has since become a rite of passage for incoming freshmen.

"Freshmen can't drive so the parents drop them off and before they get out of the car, they have to kiss their mom, or dad, or both, or the dog and the brothers and sisters, and then they get out of the car and off to class," said Father Brian O'Brien.

Bishop Kelley High School is welcoming its largest freshman class in school history Tuesday morning with 270 students.