2. Something there can only be one of. If there is more then one then it is not the best band ever.
3. The best band ever depends on the person you ask.
Ace, "There can only be one best band ever cock sucker. God, I fuckin hate you, you should burn in hell you red neck son of a bitch."
Melodic death metal fan: Green day has no talent- you're just a conformist who likes to bandwagon on every hyped band with sex appeal. Clearly, Opeth is the best band ever.
Objective listener: Neither one of you is completely right- now please stop cluttering Urban Dictionary with your opinions!