You don't know what exactly that happened, but now you and Dean are at a karaoke bar on the road.

Maybe it was the alcohol getting to the minds of both of you, making the idea of singing for everyone in that bar interesting, while the Karaoke seemed to challenge the two of you to participate as well.

Making it clear here is the fact that Dean refused to death to go up on that small stage when you teased him about singing, implying that he always sings in the Impala when you guys are on the road.

But look at you now, completely drunk and brave, as you now pull him along so you both can choose a song together to sing, while you lean on him.

He stumbled just like you, but kept you steady by wrapping an arm around your waist and pulling you into him so you don't collapse on the ground below or against the people around you. Dean grumbled with some annoyance when you two bumped into a couple of people, who gave you both an annoyed look. But you didn't really care either way, too focused on wanting to sing for everyone in the bar.

"I swear to god, if I do this," He started to say to you, leaning down to your level, "...You better do something for me."

Obviously, If you are convincing him to sing, he will definitely want to choose the song. But you don't mind, since you love Dean's taste in music, especially the Classic Rock he enjoys.