Mashed Up Videos, oftenly called AMVs in America, are called MAD Videos in Japan. They are videos that mashed up existing videos, often based on an another music.
Original video, famous in the name of Charlie Bit Me
Music from Kirby, used as a catalyst.
MAD Video as a result
In Japan, popular TV commercials are often used as a material for these MAD videos. These videos sometimes make new audience of the original commericial. I believe that being used in MAD videos can be defined as one of the status for TV commericials in Japan.