Visible crew/equipment: When Mrs. Hafer keeps Drake back after class, there is a long shot and Drake says, "What is this about?" At this point you can see a fluffy red boom mike between Drake and Mrs. Hafer.
Continuity mistake: When Megan loads the tomatoes into her machine, she only loads three tomatoes. When she attempts to shoot at Josh, she shoots all three tomatoes, but when her mom clicks the button again it shoots another tomato.
Visible crew/equipment: When Josh says that Megan missed him with the tomato or apple prank and the camera cuts to Josh walking to Drake, you can see the boom mic at the top of the screen. (00:06:47)
Chosen answer: It's just a screaming fan that knows everything about Drake.
BigOLB