Watch: Freshmen kiss their moms goodbye on the first day of school

An adorable video shows freshmen at Bishop Kelley High School in Tulsa, Oklahoma, kissing their moms goodbye on the first day of school. 

Seniors line the parking lot holding signs…

An adorable video shows freshmen at Bishop Kelley High School in Tulsa, Oklahoma, kissing their moms goodbye on the first day of school. 

Seniors line the parking lot holding signs encouraging the students to take part in the tradition. 

The annual first-day custom has gone on at the Catholic school for more than 20 years. 

Watch the video: