whirlwind
Headphoneus Supremus
You have failed me for the last time...
No matter, I will use @JazzVinyl 's method, or my personal favorites, acetone and isopropyl alcohol. And if I STILL can't get residue off, the tube will be doused in enough combustible liquids by then, I might as well just light it on fire and stay warm, winter is coming.
Use a hair dryer to get the glue hot on the sticker...once it is hot enough the sticker will pull off.