Drabble written for Dracoharry100 challenge "I'm A Believer".

Potter had wandered by thirty minutes ago whistling some song, and now Draco couldn't think about anything else.

He knew he'd heard it before.

Finally, he snapped his book shut and stormed off after Potter.

"Malfoy," Potter said suspiciously.

Draco crossed the hallway in three long strides and pinned Potter to the wall poking him with his wand.

"What was that song?" he growled.

Potter looked at him as if he were deranged. "What song?"

"The one you were whistling earlier! You know," Draco hummed.

"Do you mean I'm a Believer? Malfoy, you attacked me to find that out?"

"Er…yes."