I like mash-ups... videos where a couple of songs are blended together laying the vocals of one song over another song, the more seamless the mix the better.
Some people just have way too much time on their hands'. But, their lack of sex life is our gain, because we get to see videos like this one. The amount of work that went into this video would probably blow our minds, but we like it. We really, really like it. Lionel Richie would be proud.