It's a tale as old as time. Two skeletons meet, they fall in love, they go dancing in a park for all the world to see, spreading a message of acceptance and harmony and vaulting to the top of the Viral Video Chart, which tracks views of campaigns in the week ending each Sunday.

The effort, created by R/GA for the Ad Council's "Love Has No Label" campaign, was created to challenge implicit biases the average person might have against specific groups of people. Spoiler alert: when the dancing skeletons step out from behind the X-ray screen, they're revealed to be same-sex couples, mixed-race couples, older couples and friends of different religions and races.

Adidas, which has been dominating this chart as well as iSpot's "most-engaging" list, drops to No. 8 this week.

Geico's funny and weird "Unskippable" ads -- in which all 30 seconds of messaging are crammed into the first five seconds of the ad, leaving the characters frozen (an homage, perhaps, to old "Police Squad" epilogues) -- enter the chart at No. 3