Rock Star/Rock Stars.
Only applies to actual, bona fide Rock Stars. Yet I see it applied to all kinds of ridiculous things. For instance I just got an email for this conference about 3D printing:
"How Will 3D Printing Affect Your Industry? Don’t Miss Rock Stars of 3D Printing"
Previously I'd received notices for conferences about the Rock Stars of Big Data (Big Data - there's another term that should kindly shove it).
I want to put whoever is responsible for applying this term to the most tedious, mundane, non-interesting things in a blender with kerosene and live flesh eating ants, turn the blender on and drop it in a tub of boiling water.