Oh Crap/Music

GIRL YOU KNOW IT'S GIRL YOU KNOW IT'S GIRL YOU KNOW IT'S... (Unfortunately, there don't seem to be any videos on YouTube that aren't either dubbed over or butchered.)
"But you could have heard a pin drop - when Johnny stopped and locked the door..." [1]
In "Dinosaurchestra Part 3" by Lemon Demon, the time machine which the narrator used to go back to the late Cretaceous period and start a rock band with dinosaurs can't make the return trip, and then..."What's that rock way up in the sky?"
In the Gorillaz video for "Stylo", when 2-D and Murdoc realize that they are being chased and shot at by none other than Bruce Willis.
In the song "Get My Gun" by D12, Eminem angrily threatens a fan with a gun:

Wassup, bitch?! (cocks gun) Autograph this! (click) ...Oh, shit.

In "Der Erlkönig", the boy is increasingly terrified (and justly so) each time he tries to get it through to his father that the Erlking is after him [the boy].
OH NO! NOOO! PLEASE GOD HELP ME!
- More or less mankind's reaction in the final verse of "Iron Man" when the titular time traveler, after being sealed away for centuries, is reawakened and proceeds to kill everyone.