A sweater, a pajamas and a plush slipper. According to Tik Tok official website's public information, what are the three-piece suits that Tik Tok youth can do? A sweater, a pajamas and a plush slipper. Younger, an online celebrity, Tik Tok, is a famous online celebrity who has risen on the popular short video platform in China in recent years. With its lively and lovely, unique image and style, it quickly won the love of many fans.