Battery ads, thankfully, don't need to star a toy bunny that never stops: Duracell's new video, "Powering Kevin Jorgeson," breaks onto this week's Viral Video Chart in the top spot with a vignette about the climber and his father.

The other newcomers on the latest chart, provided by Visible Measures and covering the week through last Sunday, are Nissan, taking its turn with a now-familiar stunt putting unsuspecting passengers into extreme driving scenarios; Purina, winning the web with pets, as one can; KFC, with a TV spot of siblings taking bikes to the drive-through for the family; and HTC, promoting the speakers on its HTC One phone.

It's worth noting that the chart counts plays across campaigns whether those are organic -- with viewers searching for or sharing video they love -- or paid, as in pre-roll video. (That's as long as viewers opt in or can skip the paid ad after a certain time; Visible Measures doesn't count pre-roll that viewers can't escape completing.)