Welcome! Your a bit silly. Ok now we’re introduced, let me introduce you to ytDub! This site allows you to dub youtube videos with other youtube videos, so if you want to put a great song over another before sharing it you can do so via ytDub, or maybe you want to translate a video using the translations from a poor source video? (Honestly we expect you to use funny music to people being stupid, but we had to have a serious reason fro ytDub!)
via Create Your YtDub!.