These kids usually bring their 5000-songs-aren't-I-cool-ipod everywhere they go. Especially parties. Then they bring their big stupid portable stereos, so they can broadcast their "fascinating" taste of shitty music to the world.
So they will willfully shout "HEY! HEY HEY HEY! I HAVE LIKE THIS SHITTY EMO BAND ON MY IPOD BUT THEY'RE LIKE SO FUCKING AMAZING!" *throws your ipod onto the ground* "MMM, MAYBE THIS SONG SUCKS, ILL FIND ANOTHER" *scams through 100 more songs* "HAHA THIS IS SUCH A HIT! THE KIDS ARE GONNA LOVE THIS!"
Then, for the most part, everybody in the room sighs while the braggy ipod owner dances around to the song, showing the world that they had some inside joke with another one of their fantastic friends over this song.
These people can't keep a song on for their life's sake. Even when a good song comes on and the party finally starts up again, this person can't control the urge to shuffle through another 100 songs. They pretty much ruin every party because by the time they decide on "the perfect song", half of the people in the room are sitting down and talking.