Music on Vine - Vine, now with music. Make 6-second music videos.
Photomosh - Turn anything into a vaporwave
Storybeat - Storybeat app comes up with features to help you in changing the background music of your videos in a few simple steps to share your favorite moments with your social media friends.
HearSeeParty - Combine Gifs with with music using tags
Wiggle - Make Awesome Selfie Music Videos
Decim8 - Turn photographs into glitch art