Vine's new feature lets you remix audio on top of existing clips
 

Sometimes you come across a Vine that you'd like to put your own spin on. To help make that process a little easier, the app now sports a remix tool that allows you to create new audio for the looping footage. To replace the sound on any Vine, simp...

http://www.engadget.com/2015/11/18/vine-remix-feature/