Moses McCormick

Moses Monweal McCormick (March 12, 1981 – March 4, 2021), also known as Laoshu (from , ) or Laoshu505000, was an American YouTuber and language coach.

Language learning McCormick gained popularity by speaking several languages with native speakers that he met in public places, and uploading the videos on his YouTube channel. He called this activity "leveling up".

McCormick taught language lessons remotely over the Internet,

The foreign language in which McCormick was most fluent was Mandarin Chinese. He also spoke around twenty languages at a basic conversational level, including Japanese, Vietnamese, Cantonese, Korean, Somali, Spanish, and Swahili.