UBIQUITY This summer’s entry in the Boy-Band Stakes is a global Top 5 pop hit.
LONGEVITY Hot start, but too soon to tell: it was released in late July.
SOCIAL POWER Thanks in part to a ridiculous video (with the lads in multiple roles), One Direction is killing it on social-networking sites.
ROOTS The song’s main riff is blatantly lifted from the Who’s “Baba O’Riley.” Points for recognizing greatness.
CONTROVERSY You’d think they could have at least used the phrase “tweenage wasteland” somewhere.