Tik Tok's sending mv is not illegal and needs copyright protection. The publication of a work needs to be made by the original producer and copyrighted. Tik Tok, a short video social software with musical creativity, was hatched by ByteDance. The software was launched on September 20, 2006. It is a short video community platform suitable for all ages. Users can choose songs, shoot music works and form their own works through this software.