Here's what I think happened...

They're riding down the road, passenger fell asleep about 45 miles ago. Rider starts thinking about the latest episode of 'dancing with the stars'. After considering the possibility that the jonas brothers could be the result of a lab test gone wrong. He wonders if they were spawned to earth by satan with the help of the hanson brothers. he then remembers that he loves 'mmm-bop' and instantly went in to a coma.