Zhang Lan. According to the inquiry, I am Lan Lan's homepage in Tik Tok. I know that I am Lan Lan, formerly known as Zhang Lan, and I am a blogger of Tik Tok. 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.