OK GO is a music band that has their own individual sound.    They will add a little bit of their personality to Sesame Street as they teach children about primary colors.   You can check out a video of that performance below.  You can also see it on the Sesame Street episode airing tomorrow.  It is a fun way to learn that red, blue, yellow are the primary colors.  Then these combinations can make secondary colors.   Maybe you remember from the old Ziploc bag commercials that yellow and blue does make green.  But there are some other ones0 like: yellow and red makes orange, or red and blue makes purple.   No Muppets in this one, but we know the Elmo, Big Bird, and Cookie Monster could have filled in wonderfully for the primary colors.