The video on Tik Tok by Cheng Keer is a special effect. According to Tik Tok's information of Cheng Keer, Cheng Keer will use special effects such as sad bear and sweet girl patting when shooting video. Tik Tok is a social software of music creative short video hatched by ByteDance, which was launched on September 2th, 216. It is a short video community platform for all ages, and users can choose songs and shoot music works to form their own works through this software.