Need Help With Finding This Song!!!!

In the music video this girl gets a text message that causes here to go out and she dies in a car crash.....this guy decides to go back in time and work as a waiter at the place where she was when she got the TXT message and tries to stop here and he fails a bunch of times...but the last time he gets it right and is able to distract her and get her to talk to him and forget sbout her phone.......oh and the guy wears a purple shirt