. - [kelsey voiceover] dear mom and dad, i'm sorry for everything. - [livia] throughout the psa, we see shots of kelsey writing a letter. - the letter in the end is kind of kelsey writing from heaven. - and she's apologizing to her parents and everyone for all the pain that she's caused. - that she should've worn her seatbelt and she's really sorry. - and that's where we kind of ended it. we go to a black screen and, you know, don't let this happen to you. - [livia] a recent tragedy at their school was part of the inspiration for the psa. - so last year, we had a student get in a one car crash. - he was on his way to work, and went off the side of the road, and ended up hitting a tree. - and he passed away. and he, he would've been a senior this year. he was a really great person. and it really impacted the community. - impact on the community was very much part of the message the girls wanted to get across in their psa. we'll show you how it turned out, when teen kids news continues. we'll be right back. - action! (soft but exciting and energetic music) - [announcer] closed captioning