Answer the question about text:

Because they were drunk and whatever drugs they 'd taken had evened out and they were kinda mellow . The high point of the gig was when the massive dude that beatboxes in Cuba mall appeared out of nowhere and started beatboxing the guitar riff from The immigrant Song . That was pretty badass .

What caused them to get into the state they were in ?
They wanted to get drunk and high because it feels good .