I went to a wedding last November, and I was surprised at how DJ apparently means "person who does nothing" nowdays.
Taking care of music at events used to be a full job in itself, but all the DJ did was plug his iPod into the speaker. It automatically plays the next song, so all he had to do was pick out three hours of music and then leave.
He couldn't take any requests because he had no other music besides what was on the iPod. And poor Granny Ro, who specifically brought in her Polka CD because the bride said not to, was cruelly rejected, because a CD is a type of disc, and no Disc Jockey can actually play discs. I mean, seriously.
The weird part is that the DJ didn't pick out the music--the bridal party picked it all out ahead of time. So...what was the point of hiring a DJ? They could have saved a couple hundred bucks by simply plugging one of their iPods into the speaker instead of paying somebody else to do it.
...Now I want to write a Pug's Adventures storyline where Loreen gets a job as a DJ, but I can't, because it's Finals Week, and I should be studying instead of drawing comics (or updating blogs). Guess you guys will have to settle for the one comic I drew that mentions a DJ.