Show HN: Remix: Mashup any two YouTube videos

Simple: http://mvgen.com/remix/

Put in any link from youtube as a video, and any link from youtube or soundcloud in as audio and Remix combines them together.

Example output Seven Dwarves -vs- MIMS: https://www.youtube.com/watch?v=BgLjHb5fiLs&feature=youtube_gdata