"Three Primary Colors" is a Sesame Street song featuring OK Go. The song was written by OK Go, while the video was conceived and directed by Al Jarnow.
The song promotes the three primary colors, red, blue and yellow, and how when mixed together, they can make many more colors.
As is for most OK Go songs and music videos, Damian Kulash sings the main vocals. Tim Nordwind lip-syncs to his vocals while the rest of the band portrays the colors (Nordwind playing the product of their mixtures).