Redundancy - That which is predictable or conventional in a message, redundancy is the result of high predictability.
Entropy - That which is unpredictable
Taylor swift has a high redundancy because her videos are predictable, there is always a boy in them or the video is based around a boy, she normally plays the lonely girl who gets the popular boy like in "You Belong With Me"
Ok Go's video is very entropic but gets more redundant as the video progresses because the unpredictability of the treadmills wears off after a while
Yo La Tengo's video is also very entropic because it is very unexpected all the way through, the music video is not the norm, it distracts from the song and has people talking over the song
http://www.youtube.com/watch?v=zDgpQBaziy0 - Yo La Tengo
http://www.youtube.com/watch?v=dTAAsCNK7RA - Ok Go