VMM is the app that allows you to trim two videos and merge them together into one video. than add a background music to the video.
:) Upload first video and trim the part you want to use, than upload the second video and trim the video clip you want to use. Merge both videos together and add background music to it too.
If you want to add more video, upload the videos you created first and use the whole clip, than upload the second video and trim the clip you want and merge them again.
Enjoy the VMM!!!